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Ibis Mojo HDR 650B Carbon Mountain Bike Frame - 2014

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Item # IBS0038

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Item # IBS0038

Description

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.

  • DW-link suspension design
  • 27.5in wheels
  • ISCG05 chainguide tabs
  • 130mm of travel, controlled by the venerable FOX FLOAT CTD Trail Adjust Kashima

Tech Specs

Frame Material:
carbon fiber
Suspension:
full-suspension
Head Tube Diameter:
ZS44/EC49 Mixed Tapered
Rear Travel:
130 mm
Front Derailleur Mount:
high direct mount
Rear Shock:
FOX FLOAT CTD Trail Adjust Kashima
Cable Routing:
external
Seatpost Diameter:
31.6 mm
Rear Axle:
12x142 mm Maxle
Bottom Bracket Type:
68 mm English
Headset Included:
no
Recommended Use:
all mountain
Manufacturer Warranty:
3 years limited on frame
ISCG Tabs:
yes, ISCG 05
Derailleur Pull:
top
Compatible Components:
Shimano, SRAM

Geometry chart

Ibis

Geometry Chart

 

Mojo HDR 650B
 

Seat Tube

Effective Top Tube

Stack

Reach

Stand Over

Head Tube

Head Tube Angle

Seat Tube Angle

Bottom Bracket Height

Chainstay

Wheelbase
S 15.0in 22.2in 22.5in 14.6in 28.1in 3.7in 67.1o 71.1o 13.5in 17.1in 43.2in
M 17.0in 23.1in 22.8in 15.3in 29.8in 4.0in 67.1o 71.1o 13.5in 17.1in 44.1in
L 19.0in 23.8in 23.4in  16.1in 29.9in 4.7in 67.1o 71.1o 13.5in 17.1in 44.9in
XL 21.0in 24.6in 24.0in 16.5in 30.3in 5.3in 67.1o 71.1o 13.5in 17.1in 45.7in

Ibis Mojo HDR 650B Geometry Chart

Reviews & Community

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Here's what others have to say...

The price is amazing...but do you guys carry a large frame

Best Answer Responded on

Unfortunately, we have blown through these frames, it was an unbelievable deal that sold out so fast. We, at this time are out of the large frames. But, we have other options and good pricing for similar bikes. Get in touch with me at gmcbride@backcountry.com and I can help narrow the options, and get you the best possible pricing.

Avg. ride time: 10h 43m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.
5 5

Man's Best Friend

  • Familiarity: I've used it several times

One of my favorite all around bikes and a favorite all-time from Ibis. The Mojo HDR 650 handles just about anything on the descents, and it climbs surprisingly well for not being a feather light cross country race machine. Truly the one bike to do it all. Keep up with your skinny friends on the climbs, hold the wheel of your downhill buddy on the descents (or drop them both).

If you were lucky enough to ride the original mojo, you'll love the extra speed and capability you'll discover with a larger wheel. Ibis keeps a good thing going with the DW-Link suspension, smooth when you need it but always ready to respond when push comes to shove. DW-Link is a Golden Retriever in bike form; fun, playful but loyal and always by your side. Man's best friend in suspension.

If you have any questions, please give me a call at 1.888.276.7130 ext. 4579 or shoot me an email at tjackson@backcountry.

Responded on

We've got more frames in stock now with the Cane Creek DB-Inline rear shock. This is an AWESOME shock for customizing your suspension and improving your ride experience overall. Please get in touch for more info and I'd be happy to help.

5 5

goes like a scalded cat

  • Familiarity: I've put it through the wringer

this thing just rips. i put the enve m60's on this, and it leaps out of tight corners like it's coming out of a slingshot. when you slow up in a tight turn and then the trail straightens ahead of you, you jump maybe 2 bike lengths on other guys. that is DW link for you and anyone who tells you the short rear travel is an issue must be doing something that should have a gravity bike anyhow.

this thing eats park city trails, it's stiff, and it just finds its way naturally over rocks and scree. it sounds funny to say it, but this bike just straight up has soul. it likes to go out and play. it's lively in the sense that it feels like a living thing under you, hops like a real live bunny (not a little one, but those big, honkin snowshoe hares) and it hits that zen spot where the bike is most when you can barely even feel that it's there.

Avg. ride time: 2h 49m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Ibis Mojo HDR 650b

5 5

Like a ballerina with nunchucks.

  • Familiarity: I've put it through the wringer

Ready to dance down whatever you put in front of it, the HDR 650B is quite the quiver killer. If you're riding a ton of park or hard DH, you may be more apt to stick with the 160mm travel/26" version, but I love the subtle improvements that the 27.5" wheels bring about, and haven't been feeling any lack of oomph for suspension.

Really, the only complaints you hear tend be be on internet forums (cough mtbr cough) are that 1) there isn't enough travel and 2) rear tire clearance. To that, I think a 140mm front fork (34mm ideally) mates really well with the 130mm rear, and while it's not ideal for hucking off your roof to flat, it is completely at home getting bashed down the gnar in your local (or EWS) race. The DW-Link pedals (and climbs) wonderfully while providing really active squish in the rough spots, and it ends up feeling like more than 130mm. (That's what she said...)

I'm running a Hans Dampf 2.25 rear and think it's a nice match for my "enduro" build, and haven't had any problems with tire clearance.

Consult the reviews here + the rest of the internet/magazines...but if you can, get out and demo an Ibis. You'll be psyched, and compared to similar products, your wallet will be pleased with your purchase.

5 5

Same Old Ibis Awesomeness, Size 27.5

  • Familiarity: I've put it through the wringer

This is exactly what you'd expect from Ibis when they start tooling around with the magic 27.5" wheel size. Fantastic geometry, control, climbing, descending, everything. Rock-solid feel when plummeting down the sketchy stuff. Throw on a slightly longer stem (than might be spec'd on some of our complete bikes, that is), tighten up the suspension, and this could be a XC rig, too. Certainly one of the most versatile frames we sell, and damn, love that Cobra Blue!

Same Old Ibis Awesomeness, Size 27.5
5 5

650b convert!

  • 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.

Responded on

Luke - how is the head angle / handling with the 150mm fork? I've just purchased the "feature bike" and its in transit but noticed that while all the spec builds from Ibis have a 140mm fork, the bike i'm being sent has a 150mm. I'm guessing the angle goes from 67.1 to 66.6ish or so and might make climbing just a touch more squirrely. Any comments are appreciated.

Responded on

Matt,
Sorry for the delay in response. It does slacken the head angle out to right around 66.5 degrees. In turn, there were some sections where the front end got a bit squirrely and wanted to lift (mostly technical climbs where you cant get a ton of weight on the front end). I also tend to run a bit more sag than I would if it was 140mm, so the effective axle to crown length when I'm on the bike is probably only a 5mm difference. That being said it descends like an animal with the slacker head angle and extra travel. Fire road climbs I didn't notice much of an issue. If you got a Pike, it's super easy to lower it down to 140mm with a new air spring, I think it's around $50 IIRC.

5 5

Favorite 650B

  • 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.