Hitch-Mount

All your bikes, all at once. The HangTight is designed for versatility, built to handle adventures of all sorts, and won’t blink at anything from kids to fat bikes to road to mountain bikes and everything in between. With fully padded cradles that support each bike by the handlebars, it serves up a shuttle-ready blend of stability and ease of use. The HangTight will get your bikes to the ride and back home safely no matter if your crew is a mix of all-mountain shredders or simply a family headed out for two-wheeled exploration. PRODUCT DETAILS - Transports up to 4 flat bar Bikes or 3 drop bar bikes using minimal space - Securely supports most road, mountain, kids, and cruiser bikes by the handlebar - Fully padded cradles protect your handlebars, including carbon bars - Rotating rear wheel cup fits a wide range of wheelbases up to 50" - Accommodates bikes up to 37.5 lbs. each - Holds 20"-29" tires up to 5" wide - Add your own bike lock to the integrated lock loop for greater bike security - Foot-operated tilt mechanism makes it easy to access the rear of the vehicle. - Dual cradle retention stabilizes and protects bikes from one another. - HitchLock included - Built-in bottle opener—cheers! - Fits 2" hitch receivers only - Compatible with the Yakima BackSwing and StraightShot (HangTight 4 only) - Not compatible with aero handlebars, clip-on aero bars, or handlebars larger than 35mm in diameter - Transport dual-crown fork bikes with the HangTight DH Cradle accessories (sold Seperatly) PRODUCT SPECS - Weight: 73.00 lbs.

Great for families, double dates, or bringing your entire bike quiver, the HoldUp EVO +2 turns the 2" HoldUp EVO into a four-bike hauler. It's versatile enough to handle most bikes, from BMX to fat tire bikes. The StrongArm hook secures the bikes at their wheels, protecting carbon frames and painted surfaces. The whole unit can still tilt down and out of the way with bikes loaded, for easy rear-of-vehicle access, and the empty trays fold up and out of the way when not in use. Included SKS locks for each bike give you peace of mind. - Attaches to the 2" HoldUp EVO to carry two additional bikes - StrongArm hook secures bike at wheels, protecting painted surfaces and carbon frames - Trays easily adjust to reduce bike-to-bike interference - Tilts down with bikes loaded for rear-of-vehicle access - Fits most bikes, including fat-tire, mountain, road, hybrid, women's-specific, BMX, kids' bikes, & E-bikes under 50 lbs. - Accommodates disc brakes, through axles, boost hubs, and full suspension bikes - Fits 20" to 29" wheel sizes and tires up to 4.8" wide - ?Accommodates bike wheelbases up to 48" - Integrated SKS (Same Key System) locks included for added bike security - Compatible only with 2" version of HoldUp EVO & HoldUp Product Specs: - Weight: 36.44 lbs. - Dimensions: L 27.00 in x W 42.00 in x H 8.00 in - Limited Lifetime Warranty

The StageTwo is built to carry your valuable steeds anywhere you need to go, securely and in style. From road to mountain and kids to fat bikes the StrongArm hook quickly secures your bike. The stadium seating tiered architecture increases ground clearance on rutted trails or steep driveways. While the offset tray design further minimizes bike to bike interference and maximizes functionality. The Tool-free locking SpeedKnob™ 2.0 makes install easier than ever, and the forward-facing remote tilt lever means fast access to the rear of your vehicle and integrated locking cables, combined with the ability to add your own lock, provide serious security. - Tiered and adjustable bike trays minimize bike to bike interference and maximize ground clearance? - StrongArm™ hook secures bike at wheels, protecting painted surfaces and carbon frames - Convenient remote tilt lever for easy rear of car access - Tool-free locking SpeedKnob for secure and simple instillation and removal - Offset Trays for extra bike to bike clearance - Fits most bikes, including fat-tire, mountain, road, hybrid, women’s specific, BMX, kids’ bikes, & E-bikes up to 60 lbs. each - Fits 16” to 29” wheel sizes and tires up to 3.25” wide and up to 5" wide with the StageTwo Fat Bike Kit (Sold Separately) - Accommodates bike wheelbases up to 52” - Integrated SKS (Same Key System) locks included to secure bikes to rack and rack to vehicle receiver - Tilts forward with bikes loaded for trunk access - Add your own bike lock to the integrated lock loop for greater bike security - Available in two sizes: 1.25” hitch receivers & 2” hitch receivers - Carry four bikes – just add the StageTwo 2 (compatible with 2” version only) - Available in two colorways, Anthracite and Vapor (2" only) - RV and Off-Road rated to 36lbs per bike

Premium hanging hitch bike rack providing superior bike protection and multiple size options to fit the needs of two people or an entire family. Features - Superior bike stability and fit with integrated anti-sway that prevents bike-to-bike contact and "disappears" when not needed - Bikes are safe and secure during transport thanks to 7" of spacing between each bike - Quickly attach bikes and easily secure them to the rack using the ratcheting cradle strap - Compact cradle design accommodates wide variety of bike sizes/frame styles - Lock bikes to the rack using the integrated cable lock (lock included) - Easily fold down bike arms when rack is not in use - Convenient access to the rear of the vehicle using the HitchSwitch lever to tilt the rack down - Easy to carry and handle, thanks to integrated grab handle - Quick to install and easy to lock the rack to the vehicle due to the tool-free, SnugTite stinger (lock included) - Easily transfers between 1.25" and 2" hitch receivers Technical specifications - Max number of bikes: 2 - Load capacity: 75 lb - Max bike weight: 37.5 lb - Dimensions: 28.2 x 11 x 37 in - Folded dimensions: 15.4 x 11 x 37 in - Weight: 35 lb - Distance between bikes: 7 in - Carbon frame compatible - Fits 1.25" receivers - Fits 2" receivers - One Key System compatible - Bike lock included - Receiver lock included

Premium hanging hitch bike rack providing superior bike protection and multiple size options to fit the needs of two people or an entire family. Features - Superior bike stability and fit with integrated anti-sway that prevents bike-to-bike contact and "disappears" when not needed - Bikes are safe and secure during transport thanks to 7" of spacing between each bike - Quickly attach bikes and easily secure them to the rack using the ratcheting cradle strap - Compact cradle design accommodates wide variety of bike sizes/frame styles - Lock bikes to the rack using the integrated cable lock (lock included) - Easily fold down bike arms when rack is not in use - Convenient access to the rear of the vehicle using the HitchSwitch lever to tilt the rack down - Easy to carry and handle, thanks to integrated grab handle - Quick to install and easy to lock the rack to the vehicle due to the tool-free, SnugTite stinger (lock included) - Easily transfers between 1.25" and 2" hitch receivers Technical specifications - Max number of bikes: 4 - Load capacity: 150 lb - Max bike weight: 37.5 lb - Dimensions: 42.1 x 11 x 37 in - Folded dimensions: 15.4 x 11 x 37 in - Weight: 35 lb - Distance between bikes: 7 in - Carbon frame compatible - Fits 1.25" receivers - Fits 2" receivers - One Key System compatible - Bike lock included - Receiver lock included

Premium hanging hitch bike rack providing superior bike protection and unobstructed access to the rear of vehicle. Features - Superior bike stability and fit with integrated anti-sway that prevents bike-to-bike contact and "disappears" when not needed - Bikes are safe and secure during transport thanks to 7" of spacing between each bike - Easily fold down bike arms when rack is not in use - Compact cradle design accommodates wide variety of bike sizes/frame styles - Lock bikes to the rack using the integrated cable lock (lock included) - Convenient access to the rear of the vehicle, even with bikes attached, due to the patented swing-away design - Quickly attach bikes and easily secure them to the rack using the ratcheting cradle strap - Quick to install and easy to lock the rack to the vehicle due to the tool-free, SnugTite stinger (lock included) - Easily opens and closes with the pull of a pin Technical specifications - Max number of bikes: 4 - Load capacity: 150 lb - Max bike weight: 37.5 lb - Dimensions: 42.2 x 11 x 40.2 in - Folded dimensions: 15.2 x 11 x 40.2 in - Weight: 42 lb - Distance between bikes: 7 in - Carbon frame compatible - Tilt function (with bikes) - Fits 2" receivers - One Key System compatible - Bike lock included - Receiver lock included

For rides long or short, bring your bikes with ease. Features - Superior bike stability and fit with integrated anti-sway that prevent bike to bike contact and ‘disappears’ when not needed - Bikes are safe and secure during transport thanks to 7” of spacing between each bike - Quickly attach bikes and easily secure them to the rack using the ratcheting cradle strap - Compact cradle design accommodates a wide variety of bike sizes/frame styles - Effortlessly fold down bike arms when rack is not in use - Convenient access to the rear of the vehicle using the HitchSwitch lever to tilt the rack down - Easily transfers between 1.25” and 2” hitch receivers Technical specifications - Max number of bikes: 2 - Load capacity: 75 lb - Max bike weight: 37.5 lb - Dimensions: 28.3 x 11 x 35.6 in - Folded dimensions: 14.8 x 11 x 35.6 in - Weight: 28 lb - Distance between bikes: 7 in - Carbon frame compatible - Tilt function (with bikes) - Fits 1.25" receivers - Fits 2" receivers

For rides long or short, bring your bikes with ease. Features - Superior bike stability and fit with integrated anti-sway that prevent bike to bike contact and ‘disappears’ when not needed - Bikes are safe and secure during transport thanks to 7" of spacing between each bike - Quickly attach bikes and easily secure them to the rack using the ratcheting cradle strap - Compact cradle design accommodates wide variety of bike sizes/frame styles - Effortlessly fold down bike arms when rack is not in use - Convenient access to the rear of the vehicle using the HitchSwitch lever to tilt the rack down - Easily transfers between 1.25" and 2" hitch receivers Technical specifications - Max number of bikes: 4 - Load capacity: 150 lb - Max bike weight: 37.5 lb - Dimensions: 42.2 x 11 x 35.6 in - Folded dimensions: 14.8 x 11 x 35.6 in - Weight: 34 lb - Distance between bikes: 7 in - Carbon frame compatible - Tilt function (with bikes) - Fits 1.25" receivers - Fits 2" receivers

The flexible design fits more bikes than any other hitch rack in its price range. - Fits nearly all bike styles including 16-29" wheels, up to 5" wide tires, and wheelbases up to 52" right out of the box - Adjusting, installing and removing requires minimal effort, as it is one of the lightest platform hitch racks on the market at only 37.5 lbs - The HitchSwitch lever allows you to tilt the rack down for rear vehicle access or tilt it up when not in use - Lock the bikes to the rack and the rack to the receiver keeping everything safe during transport or when parked - Easily transfers between 1.25" and 2" hitch receivers

Thule’s EasyFold XT is a fully foldable, compact, and easy-to-use hitch-mounted bike rack for all types of bikes. - Easy mounting of bikes through detachable bike arms with lockable - Thule AcuTight torque limiter knobs that “click” when optimal torque is reached - Fully foldable for convenient mounting, handling, and storage - Wheel straps with adjustable pump buckles for fastening wheels. (Optional XXL Wheel Strap kit to fit longer wheelbases and tires up to 4.7") - High load capacity enabling transport of e-bikes and heavy mountain bikes - Easy trunk access even with bikes mounted, thanks to smart foot pedal tilt - Foldable bike loading ramp integrates into rack for convenient storage (included) - Large distance between wheel holders enabling transport of sturdy bikes with large wheel bases - Ergonomic transport of the bike rack thanks to the integrated carrying handles - Lock your bikes to the bike rack and your bike rack to the receiver (locks included) - Thule Snug-Tite receiver lock virtually eliminates hitch rack movement in receiver and locks the hitch rack to the vehicle

Lightweight aluminum hitch bike rack provides outstanding bike protection and easy-on, easy-off convenience. Features - Super lightweight aluminum construction is half the weight of steel hitch bike racks, providing easy installation, removal, and handling - Unsurpassed hanging hitch carrier bike protection with industry-leading 7" spacing between bikes - Superior bike stability and fit with integrated anti-sway that prevents bike-to-bike contact and "disappears" when not needed - Convenient access to rear of vehicle - HitchSwitch feature allows rack to be easily tilted down - Complete bike security with integrated cable lock (lock included) - Quick, secure and confidence-inspiring bike attachment with ratchet strap cradle strap - Easily fold down bike arms when not in use with conveniently located HitchSwitch lever - Compact cradle design accommodates wide variety of bike sizes/frame styles - Fast, tool-free installation with SnugTite stinger design delivering maximum speed, stability and security (lock included) - Transferable between hitch receivers, fits 1.25" and 2" hitches Technical specifications - Max number of bikes: 2 - Load capacity: 75 lb - Max bike weight: 37.5 lb - Dimensions: 32 x 11 x 37.3 in - Folded dimensions: 20.7 x 11 x 37.3 in - Weight: 19 lb - Distance between bikes: 7 in - Carbon frame compatible - Fits 1.25" receivers - Fits 2" receivers - One Key System compatible - Bike lock included - Receiver lock included

Lightweight aluminum hitch bike rack provides outstanding bike protection and easy-on, easy-off convenience. Features - Super lightweight aluminum construction is half the weight of steel hitch bike racks, providing easy installation, removal, and handling - Unsurpassed hanging hitch carrier bike protection with industry-leading 7" spacing between bikes - Superior bike stability and fit with integrated anti-sway that prevents bike-to-bike contact and "disappears" when not needed - Convenient access to rear of vehicle - HitchSwitch feature allows rack to be easily tilted down - Complete bike security with integrated cable lock (lock included) - Quick, secure and confidence inspiring bike attachment with ratchet strap cradle strap - Easily fold down bike arms when not in use with conveniently located HitchSwitch lever - Compact cradle design accommodates wide variety of bike sizes/frame styles - Fast, tool-free installation with SnugTite stinger design delivering maximum speed, stability, and security (lock included) - Transferable between hitch receivers, fits 1.25" and 2" hitches Technical specifications - Max number of bikes: 3 - Load capacity: 112.5 lb - Max bike weight: 37.5 lb - Dimensions: 39 x 11 x 37.3 in - Folded dimensions: 21.9 x 11 x 37.3 in - Weight: 20 lb - Distance between bikes: 7 in - Carbon frame compatible - Fits 1.25" receivers - Fits 2" receivers - One Key System compatible - Bike lock included - Receiver lock included

Specifically designed to handle the tremendous forces on the back of an RV/travel trailer, this carrier is durable, protective and secure. Features - Superior bike stability and fit with integrated anti-sway that prevent bike to bike contact and ‘disappears’ when not needed - Bikes are safe and secure during transport thanks to 7” of spacing between each bike - Quickly attach bikes and easily secure them to the rack using the ratcheting cradle strap - Compact cradle design accommodates wide variety of bike sizes/frame styles - Lock bikes to the rack using the integrated cable lock (lock included) - Easily fold down bike arms when rack is not in use - Carrier locks to the RV with the Thule STL2 bolt (lock included) Technical specifications - Max number of bikes: 4 - Load capacity: 150 lb - Max bike weight: 37.5 lb - Dimensions: 42.1 x 11 x 35.6 in - Folded dimensions: 14.8 x 11 x 35.6 in - Weight: 36 lb - Distance between bikes: 7 in - Carbon frame compatible - Fits 2" receivers - One Key System compatible - Bike lock included - Receiver lock included

- Secure bikes quickly without frame contact with the frame-free ratcheting arm Eliminate bike interference by adjusting side to side to create generous spacing between bike mounts - Ideal for carbon frames, mountain, downhill, ebikes and fat bikes as it fits 20—29" wheels and up to 3" tires without adapters - Not for use with front fenders

This add-on to Thule's premium T2 Pro XT platform hitch rack allows 4 bike capacity (2"/50mm receivers only). - Lock bikes to the rack with the integrated cable lock - Eliminate bike interference by adjusting side to side to create generous spacing between bike mounts - Secure bikes quickly without frame contact with the frame free ratcheting arm - Ideal for carbon frames, mountain, downhill, and fat bikes as it fits 20 - 29” wheels and up to 5” tires without adapters

The heavy-duty, award-winning Thule T2 Pro is now even easier to install, remove and store thanks to the integrated wheels. - Versatile design fits nearly all styles of bikes up to 60 lbs with zero frame contact - AutoAttach system makes installation and removal simple and tool-free - Integrated wheels help to maneuver the rack on and off the vehicle - The HitchSwitch lever allows you to tilt the rack down for rear vehicle access or tilt it up when not in use - Fits 20-29" wheels and up to 5" tires without adapters making it ideal for carbon frames, mountain, downhill, or fat bikes - Integrated cable lock and lock knob locks bikes to the rack and secures the rack to the receiver - Generous spacing between bike mounts with the ability to adjust side to side to eliminate bike interference

The heavy-duty, award-winning Thule T2 Pro is now even easier to install, remove and store thanks to the integrated wheels. - Versatile design fits nearly all styles of bikes up to 60 lbs with zero frame contact - AutoAttach system makes installation and removal simple and tool-free - Integrated wheels help to maneuver the rack on and off the vehicle - The HitchSwitch lever allows you to tilt the rack down for rear vehicle access or tilt it up when not in use - Fits 20-29" wheels and up to 5" tires without adapters making it ideal for carbon frames, mountain, downhill, or fat bikes - Integrated cable lock and lock knob locks bikes to the rack and secures the rack to the receiver - Generous spacing between bike mounts with the ability to adjust side to side to eliminate bike interference - Carries up to 4 bikes with Thule T2 Pro XT Add-On (sold separately, 9036XTB, 2" receiver only)

The HighNoon FC Solo is the first and only rack in the RockyMounts' family that supports use of bikes with fenders. The rack includes an upswept base allowing for better departure angle, as well as a tiered platform for handlebar clearance. The dual strap system allows for secure transport for bikes with and without fenders. - Compatible with bikes with fenders - Compatible with bikes without fenders - Carries 1 bike, up to 60 lbs. Expandable to 2 bikes, up to 60 lbs per tray, with Add-On - No contact with frame, secures bicycle by front wheel - Carries road tires up to 5.0" fat bike tires, and diameters from 20" to 29" - Compatible with bicycle wheelbases from 36" to 50" - Folds flat against the vehicle and tilts down 30 degrees to allow for hatch access - Includes anti-wobble hitch pin - Includes locking hitch bolt, cable lock, and standard lock pods, keyed alike - Rack weight 29 lbs (shipping weight 35 lbs) - Fit Memo- For cargo vans a fit check is required. Depending on hitch manufacturer, handlebar width, vehicle wheelbase, and accessories an 8" Hitch Extension may be required for handlebars to clear the doors

The MonoRail is the most versatile rack in the RockyMounts line up. It has the capacity for all styles of bikes; from skinny tire road machines, up to heavy fat tire E-bikes, this rack has you covered. - Carries 2 bikes, up to 60 lbs per tray (120 lbs total). 2” variant is expandable to 3 bikes up to 45 lbs per tray, with Add-On - No contact with frame, secures bicycle by front wheel - Carries road tires up to 5.0” fat bike tires, and diameters from 20” to 29” - Compatible with bicycle wheelbases from 36” to 50” - Folds flat against the vehicle and tilts down 30 degrees to allow for hatch access - Includes anti-wobble hitch pin - If you want to fit both 1.25" and 2" size hitches, get the 1.25" and our adaptor sleeve. This configuration does not allow for the use of an Add-On - Includes locking hitch bolt, cable lock, and standard lock pods, keyed alike - Note: Cable lock is not intended to be used while driving. Road vibrations can cause unintended wear on frames, rims, and the rack itself. Please remove cable lock when vehicle is in motion - Not for use with fender equipped bicycles - Rack weight 39 lbs (shipping weight 51 lbs) - Fit Memo- For cargo vans a fit check is required. Depending on hitch manufacturer, handlebar width, vehicle wheelbase, and accessories an 8" Hitch Extension may be required for handlebars to clear the door

The little brother of the MonoRail, the MonoRail Solo is perfect for those who do not need all of the capacity but still want the versatility of it’s larger brother. Superlight with a 25 lbs rack weight, the solo is our easiest rack to take on and off a vehicle. Out of the box the MonoRail family has the widest carrying capacity of our line up, due to their ability to fit up to a 5” fat bike tire. The solo also has the added versatility of allowing for both 1.25” and 2” hitches out of the box. - Carries 1 bike, up to 60 lbs. Expandable to 2 bikes up to 45 lbs per tray, with Add-On - No contact with frame, secures bicycle by front wheel - Carries road tires up to 5.0” fat bike tires, and diameters from 20” to 29” - Compatible with bicycle wheelbases from 36” to 50” - Folds flat against the vehicle and tilts down 30 degrees to allow for hatch access - Fits both 1.25” and 2” hitches with adapter sleeve (included) & anti-wobble bolt - Includes locking hitch bolt, cable lock, and standard lock pods, keyed alike - Note: Cable lock is not intended to be used while driving. Road vibrations can cause unintended wear on frames, rims, and the rack itself. Please remove cable lock when vehicle is in motion - Not for use with fender equipped bicycles, or on Class I hitch receivers - Rack weight 25 lbs (shipping weight 35 lbs) - Fit Memo- For cargo vans a fit check is required. Depending on hitch manufacturer, handlebar width, vehicle wheelbase, and accessories an 8" Hitch Extension may be required for handlebars to clear the door.

Lightweight, durable, and portable—Kuat's Beta is no-frills and full of function. It features an anti-wobble cam at the hitch, and a anti-wobble adjustment at the arms for a locked-down, solid ride. Anti-Sway cradles keep your bikes in line for a smooth ride down the road. The 11-pound Beta folds flat, so you can stash it in the back of a car or behind the seat of a pickup and have it ready when you need it. Features - Carries 2 bikes (up to 40 lbs. each) - Total carrying capacity of up to 80 lbs. - Folds up quickly for storage - Tilts down for easy vehicle access - Enhance the Beta with hitch lock system (sold separately) - Hand-tight cam system - no need for additional tools! - Anti-sway carriages for a smooth ride - Aluminum construction is lightweight and extremely durable Specs - Weighs only 11 lbs - Available for 2" OR 1.25" receivers. The 1.25" Beta can fit either receiver with an adapter (sold separately).

Expand your vehicle’s carry capacity (and your circle of friends) up to four bikes with the NV 2.0 Add-Ons. It's conceived for road trips, family group rides and expeditions in the backcountry—we took the best platform rack on the market and increased it. Integrated Cable Locks - Seamlessly integrated locks—long enough to fit any frame—make sure your bike stays off Craigslist while you enjoy that post-ride beer stop. And when you’re ready to roll again, they stow right back into the rack. Adjustable Tire Cradles - Bikes not wanting to share space nicely? Easily dial in the fit with adjustable tire scoops. You get three positions to choose from, so handlebar and seat post clearance is never an issue. - Intuitive Front Tire Ratchet - Trail-Doc Compatible - Premium Protective Gloss or Matte Powdercoat

With years of experience and feedback, Kuat overhauled every feature and streamlined the look while maintaining the spirit of its predecessor. A re-designed pivot system with foot assist will endure a lifetime of abuse. Adjustable cradles allow for fast bike fit adjustments. Individual bike cable locks are longer, more durable, and easier to use. Holds bikes with up to 4.8-inch tires ensure a true fit for any bike in your stable. Updated ratchet arm creates an intuitive release and a more stable tow. The ground-up re-design of the Trail Doc work stand delivers a pro level feel. These are only the highlights, resulting from 3 years of extensive development, making the NV 2.0 the most advanced hitch rack on the planet. - Adjustable front tire cradle system - Re-designed pivot with optional foot assist - Fully integrated cable locks - Trail Doc included - Front tire ratchet design with an intuitive release - Rear tire strap features a co-molded strap to protect wheels - No-tool install with hand tight hitch cam system - Premium gloss metallic powder with water transferred logos - Hitch lock included - 2 Bike capacity up to 60 lbs. each - Holds wheelbases up to 48-inch, and tires as large as 4.8-inch with use of the Phat Bike Kit - Fits 20-inch to 29-inch tires - Wheel adapter needed for 20-24-inch tires - Available in both 2-inch & 1.25-inch hitch sizes - Dedicated 2-inch model is able to carry up to 4 bikes with optional NV 2.0 Add-On

The Piston® Pro features some of the same great features as The Piston® Pro X minus a few bells and whistles. Features like all metal construction, OneTap™ hydro-pneumatic tire arms that make no contact on the bike frame, and tool-free wheel chock slides. But don't worry, this thing still sings. - All metal construction - OneTap™ hydro-pneumatic tire arms - No frame contact - Patented FastFit™ tool-free wheel chock system - Patented PedalPivot™ - Patented Flatlock™ hitch cam - No Worries Limited Warranty - 2 – Bike capacity (Add-ons Available) - 67 lbs. per tray on 2” 2-bike, 60lbs. for 1.25” version - 42 lbs. per tray on chassis mounted RV hitch (see limited warranty for details) - 53” Max wheelbase - 5” Max tire width

When you're ready to double up the excitement, effortlessly add up to two extra riders using our 1-Bike or 2-Bike Add-Ons. The user-friendly modular design makes attaching the additional trays a no-brainer. THE PISTON® Pro Add-Ons, taking you AND your crew to the adventure. - All metal construction - OneTap™ hydro-pneumatic tire arms - No frame contact - Patented FastFit™ tool-free wheel chock system