Ibis Mojo HDR 650B Carbon Mountain Bike Frame - 2014 $2,699.99
The same classic, only with a few new tricks up its sleeve.
When re-imagining its long-travel trail bike for 27.5-inch wheels, Ibis refused to sacrifice the handling that popularized the Mojo HD. So, rather than reinventing it, Ibis chose instead to refine it by shedding a half-a-pound of weight, adding ISCG05 chain guide compatibility, and renaming it the Mojo HDR 650B Mountain Bike Frame. In other words, you get the same ride that's made the original a worldwide favorite, with a few subtle tweaks that bring it back to the forefront of its class. Basically, it's exactly like it was, only better.
The Mojo HD is something of a modern classic, which is why Ibis chose not to mess with the geometry or the suspension on the HDR. Accordingly, you'll find the same DW-Link suspension design, which relies on parallel links in order to generate 130mm of plush, yet firm travel. And if that sounds like a paradox, let us assure you, it isn't. Dave Weagle is a bright guy, and as the namesake and designer of the DW-Link, he has a history of building some of the best performing suspension bikes on the planet. What this means for the HDR is that the suspension is designed to provide anti-squat in response to rider input. So, rather than relying on elevated amounts of compression damping to provide a firm feel, the suspension design does that for you. And since that allows for a lighter compression tune, the rear wheel is free to move out of the way of impacts. The result is a bike that smooth out the roughest of trails, while remaining firm when you get on the pedals.
Like its predecessor, the HDR's front and rear triangle are built of carbon fiber, and employ a process that Ibis has been steadily refining since the first Mojo hit the scene in 2005. Those refinements have enabled Ibis to shave roughly half-a-pound from the HD without sacrificing any strength or stiffness. And that's important, since the HDR is intended to be rallied down the fastest, roughest trails around. You'll also find the same head tube insert and stiff aluminum links, so durability won't be a concern. Additionally, the HDR re-purposes the same 12x142mm Maxle quick-release thru-axle, and the ZS44/EC49 Mixed Tapered headset carries over as well.
Basically, it's compatible with the latest wheels and forks, which means that the HDR achieves a maximum level of stiffness. And, after a clever adjustment of the lower-link, the frame now gets ISCG05 chain guide mounts. So, the single-ring enthusiasts among us will now have tons of chain retention options. For tire clearance, you're able to expect most 2.35-inch tires to fit. As you probably know, every brand's 2.3-inch measurement is slightly different, so it's wise to double check clearance before committing to any particular tire.
The Ibis Mojo HDR 650B Carbon Mountain Bike Frame is available in four sizes from Small to X-Large and in the colors Cobra Blue and Reverse Vitamin P.
Effective Top Tube
Head Tube Angle
Seat Tube Angle
Bottom Bracket Height
What community has to say
- Familiarity: I've used it several times
I've always been a huge fan of the 26" wheel platform, and was never sold on the 29ers. When 650b came out and started pushing forward with full force, I had a chance to demo 3 of the main offerings. The Pivot Mach 6, the Santa Cruz Bronson, and this bike. I ended up picking the HDR, for several main reasons.
This bike is by far the most fun, playful, active bike out of the three that I tested. The Pivot was a close second. I've always been a big fan of DW-Link bikes, and so have Ibis, so they've had the chance to really refine and fine tune their suspension design to optimize their pedaling efficiency. At the same time, they maintain enough plush in the suspension for even lift access/downhill trail riding. You definitely sit a bit higher in the travel than you would on a VPP or a CVA suspension setup, but the return of that is you have more travel to work with on bigger hits.
I noticed that I am spending a lot more time in the air on this bike than I did on my previous, a 2012 Cannondale Jekyll carbon. The Jekyll felt more grounded, this definitely felt more playful and flickable, which I prefer completely.
I set the bike up with a full shimano XT build kit, and a rockshox Pike 150mm fork. The build comes in right around 29 pounds, but I could easily drop plenty of weight with a lighter groupset (think xx1).
Overall I love the bike, and I also like the fact that if you use the different limbo chips and a different rear shock, the bike works as a 150mm travel 26" bike, which would be great to have for the lift access trails around here in Salt Lake City. I'm very happy with the bike, and would recommend it to anyone.
- Familiarity: I've used it once or twice and have initial impressions
Ibis made a really dialed bike with this one. It is everything I could ask for in a mountain bike. It is light, playful and responsive. I took this bike out on the Glenwild trail system and instantly loved how the DW-link set me high in the suspension on the climbs. It felt very efficient on the climbs which only served to get me more stoked for the descent. The wheel size was a perfect mixture of a better climber and stability than my SB66 but more maneuverable than the SB95 or the Tallboy. While I wasn't sure about having less travel than my SB66, I soon realized that it was the perfect amount of travel for a 650B bike. On the descents, this bike was incredibly stable. I felt more comfortable at speed than I had ever felt before. Needless to say I dropped everyone I was riding with. The DW-link created a very active suspension which I loved to load up before some small jumps in the trail to boost the bike into the air. Once airborn, I felt that it responded more to my thoughts than my body. I could easily whip and tweak the bike around in the air which made me feel like Red Bull was finally going to sponsor me. This bike loves to be ridden hard and fast. If you have any questions about the HDR give me a call because I could talk about it all day long.
Here is my contact information: My direct line 801.736.6396 ex. 4389. Feel free call to me anytime, I?m always happy to talk about bikes or gear or the weather. Whatever works! I?m here Mon, Tues and Friday 1:30-10pm MST and Saturday 9-5:30 as well as Sunday 10-7. I look forward to speaking with you.