10% OFF SALE ROCKYMOUNTS R4 TANDEM BIKE RACK!
+ free shipping on orders of $99 & over (contiguous US only)
The Rocky Mounts Tandem R4 Bike Rack is the latest tandem carrier innovation that offers both premium features and a price that simply can't be beat! Attaches directly to either Yakima Racks base rack round cross bars or Inno Racks & Thule Racks base rack square load bars (not compatible with factory roof rack systems). The RockyMount R4 tandem carrier allows the front wheel to be removed and easily mounted onto the fork mount of the rack from the ground. Once the fork is clamped in, simply lift the rear wheel onto the bike rack tray, that's it! The best part is you will only have to lift half the bicycle's weight.
This is also the only tandem bicycle carrier that will allow you to quickly switch to transporting a regular single bike (works as a superb recumbent bike rack too) - simply turn a wingnut and the bike tray slides forward. Sliding the tray forward when not in use will also eliminate any possible contact when opening up your car's rear door or hatch.

- Simple push button design & pivoting axle allows one person to easily load bicycle.
- Internal bearings and headset technology make for silky smooth movement when pivoting the bike up or down from the rack.
- Telescopic tray design allows for both tandem bikes AND single seaters too. Also works with recumbents.
- Attaches directly to both Inno Racks & Thule Racks base rack square load bars as well as Yakima base rack round bars. Please note this tandem carrier is not compatible with factory rack crossbars.
- The Rocky Mounts Offset Bracket (sold separately; see accessory add-ons below) may be required to use the pivoting function of the Tandem R4 on certain vehicle rack set-ups because the front chainring of the tandem bike can hit the window or doorframe while loading the tandem. See accessories below for complete details.
- Universally compatible with any bike with a wheelbase from 35" to 78".
- The Rocky Mounts R4 is constructed with the strongest non-corrosive, ovalized, heat treated 6061 aluminum.
- 9mm quick release skewer secures the fork to the rack, works with both road tandems and mountain bike tandems.
- For security, we recommend locking your bicycle to the bike rack using a cable lock (sold separately; see accessory add-ons below).
- All mounting hardware included.
- Easy to follow RockyMounts R4 installation instructions manual included.
- Sleek silver anodized finish.
» RockyMounts R4 Tandem Rack Installation Instructions
RockyMounts R4 Tandem Bike Rack Resource Wall
Product Reviews
Read the reviews below to find out what other customers are saying about the RockyMounts R4 car roof mount tandem bike rack & recumbent bike rack.
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Sturdiest and Best built Tandem Rack Ever!
this RockyMounts R4 tandem bike rack review by Todd Williams
vehicle year/make/model: 2007 Ford Focus
item(s) transported: tandem mountain bike (20mm axle) / regular 9mm road and MTB
I have been using this bike rack for 3 years now and it is simply amazing. Unlike other tandem racks it fits a regular bike and doesn't look like a monstrosity on top of your car. Very solid construction and super easy to use. The best part is that it's half the price of Thule and Yakima tandem racks. I've been using mine with a 20mm axle adapter and it works great!!!
Product Discussion
Discuss the Rocky Mounts R4 tandem bike rack & recumbent bike rack. Use the form below to fire away with your questions, answers and general comments about this product. |
Product Videos
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Customer Installation Pictures
Proud current customer with ORS Racks Direct? |
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Accessories
Rocky Mounts Offset Bracket for R4 Tandem Bike Racks | Thule Cable Locks for Car Racks - Thule 538 Cable Lock | |
2011 Yakima Wheel Fork for Roof Car Racks - Wheel Holder for Bike Racks - 8002067 | 2012 Thule 593 Wheel-On Bike Wheel Carrier for Car Roof Racks | |
All Thru-Axle Suspension Fork Adapters - Yakima / Thule / RockyMounts - Lefty, 25MM, 24MM, 20MM, 15MM Axle Fork Adaptors for Bike Racks | 2012 Thule BSTK2 Bike Stacker Storage Rack - Home Rack / Garage Rack for Hanging Two Bikes | |
Delta Cycle Wall Mount Storage Racks - Home & Apartment Bike Hanging Racks | Thule Racks Bike Boxes & Travel Cases - 2012 Thule 699 Round Trip Bicycle Box & Travel Case | |
Thule Roof Rack Accessories - 2012 Thule 232 Step Up Wheel Step | RockyMounts Spare Parts & Replacement Parts for All Rocky Mounts Bike Racks |
ORDERING NOTES
Attaches directly to both Inno Racks & Thule Racks base rack square load bars and Yakima base rack round bars. Please note this carrier is not compatible with factory rack crossbars.
The RockyMounts Offset Bracket (not included; see accessory add-ons above) may be required to use the pivoting function of the Tandem Mount R4 on certain car rack set-ups because the front chainring of the tandem bike can hit the window or doorframe while loading the tandem. See accessories below for complete details.
For security, we recommend locking your tandem bike to the rack using a cable lock (not included; see accessory add-ons above).





















