Ibis’s new bike is a 160mm 26″ Mojo HDR. No, wait. It’s a 130mm (or 150mm) travel 27.5″ Mojo HDR. It’s both?
Built as an evolution of the Mojo HD, the HDR in 26″ mode has the exact same travel, geometry, and suspension but the ability to add 650b wheels is new. As Scot Nicol pointed out, you can have it both ways. The HDR is more than just a new wheel size though, as the frame has received quite a few updates to make it lighter and better in many ways.
Go both ways on the HDR next.
After thinking about the new HDR for around 18 months, Ibis wanted to incorporate some of the success from their Mojo SL-R into the HD including improvements in molding that resulted in a lighter bike. The HDR is about .3 to .4 lbs lighter than an HD depending on the size and color, but is stronger and equally stiff. Moving the linkages around meant they were able to add ISCG 05 compatibility and added more front derailleur compatibility as well, with increased clearance for the new 11 speed cogsets. The HDR will now fit Fox’s new lighter weight XV CTD air cans, and piggyback shocks.
After converting an HD 140 to a 650b bike, the Ibis team like the results, but the BB was too high and there was basically no mud clearance. After realizing very few changes would be needed to make the HD 160 work, the decision was made.
As a 26″ bike the HDR can run a 160-180mm fork depending on your use. With a separate set of Limbo Chips and a shorter shock (same as the Mojo SL-R), the bike will be set in 130mm travel with plenty of clearance for 650b wheels. Ibis states that if you want more travel in 650b mode, you can add a 5mm travel limiter to the shock with the frame in 160mm mode and it will limit the bike to 150mm travel – just make sure your tire will clear the seat tube on full compression.
Tire size is limited to 2.5″ in 26″ mode and most 2.35″ 650b tires. In the name of better protecting the frame and components on a frame that is sure to take some abuse there is an optional polycarbonate cable guard that bolts to the down tube to protect the brake and shifter housing as well as a considerably beefed up lower link with dual row angular contact bearings for the front of the link. Frame will be available in Reverse Vitamin P (above) or Cobra Blue, with Black, Red, or Blue links.
A word from Ibis on the geometry:
Our stock 650b setup (geometry below) has a 140 fork that gives you a 67.1º angle and a 13.5″ BB.
With a 130mm fork you get a 13.4″ BB and a 67.6º head angle. Both measured with Pacenti 2.3 Neo Moto.
If you want to run this bike in this dropped travel mode with 26″ wheels, that works fine too, you’ll get a 68.1º head angle and a 13″ BB.
You can also set it up with 26″ wheels and 160mm of travel on the rear, and 160 to 180mm travel up front. You can see that geometry over on the HDR page.
If you want more travel in the 650b mode, you can do that. Simply add a 5mm travel reducing spacer in the stock 160mm shock. Deflate the shock to check that your tire won’t hit the seat tube at bottom out (tire sizes vary a lot). You’ll get 150mm of travel in this mode.
- Seatpost Diameter 31.6mm
- Front Derailleur 34.9mm
- Headset Mixed Tapered (Mixed Tapered (1.5″ EC49 lower, 1.125″ ZS44 upper)
- Bottom Bracket 68mm (BSA) English Thread
- Chainline 50mm
- Trail 100mm
- Axle to Crown geometry is based on 534.4mm
- S (15″), M (17″), L (19″), XL (21″) Full Geometry
The Mojo HDR frame with a Fox Float Kashima Coat CTD Adjust shock in 26″ or 650b will set you back $2,699. The completes also run the same price for 26″ or 650b with an SLX build starting at $4,699 ranging up to the XTR build for $6,999. There are also a ton of optional upgrades with various pricing including the alternate Limbo Chips for $25 and the ISCG 05 mounting bracket for $20.