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Ibis Mojo HDR 650B Special Blend Bike

Item #: BI232B03
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Ibis Mojo HDR 650b Special Blend Bike

Ibis is known in the cycling industry for the expert craftsmanship and high-grade materials that go into the manufacturing of their bicycles. To understand how it all started, take a trip back in time to1980. Ibis founder, Scot Nicol read an article about the new “Klunker Bike” movement in the Spring issue of CoEvolution Quarterly—a friendly hippy magazine. The seed was planted. In 1981, in a workshop in Mendocino, California, the first Ibis bicycle was made. Glassy eyed onlookers saw the bicycle and asked Scot if he could produce more. Fast forward 30 years to present-day Ibis: a renowned boutique bicycle manufacturer with humble beginnings that continues to raise the bar in the mountain bike world.

The Mojo HDR 27.5" frame is an extremely versatile design. It can be set up in a number of ways, for a variety of riding styles. Both the HDR 26" and HDR 27.5" share the same frame, making it possible to change wheel size and front and real travel to suit your riding style and terrain. The stock 27.5" model is set up with 130mm of travel in the frame, and is meant to incorporate a 140mm fork. The HDR's mixed tapered headset provides an impressively rigid front end platform. This design combined with the thru axle fork and stiff front end carbon layup make for an extremely precise and sturdy design. Ibis also recently beefed up the lower link of the HDR's suspension to ensure that it will endure mile after mile of abuse. Since the Mojo HDR was born out of innovation, it makes sense that Ibis wouldn't stop at the bare minimum of technical features. The newest version of the HDR features increased clearance for 11 speed drivetrains as well as a removable ISCG chainguide mount, taking the versatility of this already stellar bike to an even greater level.

For the Special Blend build of the Mojo HDR, Ibis put together a rock-solid package that puts owning an Ibis in reach for more price-conscious riders! Taming the bumps and soaking up gravity defying drops is a capable pair from X-Fusion. The X-Fusion Sweep RL2 fork keeps things in control up front and an X-Fusion 02 RLX handles rear wheel impacts. Shimano SLX front and rear derailleurs and Deore shifters keep your drivetrain in check and ensure smooth and efficient shifting, while a Race Face Respond 24/36 crank helps you deliver all the power you need to make it up hills and over obstacles. Stan's Rapid 650b rims laced to Speed Tuned XM hubs provide a strong, speedy rolling platform wrapped in Pacenti Neo-Moto 2.3 tires, and Shimano Deore BR-M615 hydraulic disc brakes give you all the control you need to stop on a dime or modulate your speed on a technical descent. Ibis finishes off the Special Blend package with an Ibis branded cockpit made from 7075 T6 aluminum, giving you a solid yet responsive set of navigation tools.


  • 27.5" (650b) Wheels
  • 2x10 Shimano SLX/Deore Drivetrain
  • Shimano Deore BR-M615 hydraulic disc brakes
  • X-Fusion suspension
  • dw-link Suspension Technology
  • 130mm of rear wheel travel
  • ISCG 05 compatible
  • 67.1 degree head angle with a 140mm fork
  • Optional polycarbonate down tube cable guard
  • 12 x 142mm Maxle rear axle
  • 160mm post mount left dropout, carbon fiber
  • Tapered Head Tube and Steerer
  • Compatible with Chris King InSet 3 headsets
  • Up to 2.35" rear tire depending on brand and height of cornering knobs
  • Dual row angular contact bearings in the front of the lower link
  • Large 28mm x 15mm x 7mm radial bearings in the rear for stiffness and long wear
  • Cable routing for dropper seatposts
  • Direct mount front derailleur
  • Fits up to 200mm diameter rear rotor

Shared Measurements (across sizes):

  • 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

Frame Ibis Mojo HDR 27.5"
Fork X-Fusion Sweep RL2, 140mm travel
Headset Cane Creek 40: ZS44 1 1/8" top / EC49/40 Traditional 1.5" bottom
Rear Shock X-Fusion 02 RLX
Wheelset Stan's Rapid 650b Rim 32h Black, w/ Speed Tuned XM hubs
Tires Pacenti Neo-Moto 2.3
Brakes Shimano Deore BR-M615 hydraulic disc, 180mm front, 160mm rear
Brake Levers Shimano Deore M615
Shifters Shimano Deore BL-M615
Front Derailleur Shimano SLX FD-M671A, top pull, direct mount
Rear Derailleur Shimano SLX RD-M675, SLX Direct Mount Type, SGS 10-spd Shadow
Crankset Race Face Respond 24/36 with bash ring
Cassette Shimano HG-62-10, 11-36t
Chain Shimano HGX 10 speed
Handlebar Ibis 31.8 AL-7075 T6, 4x9 deg bend, 710mm wide, 270g
Stem Ibis 3D forged
Grips ESI Silicone grips
Saddle Ibis Custom Saddle, CrMo rails
Seatpost Ibis 31.6 x 350mm, AL-7075, 220g

Note: Components are subject to change without notice.

Size Small Medium Large X-Large
Seat Tube Length 15" 17" 19" 21"
Effective Top Tube Length 564mm 587mm 604.5mm 625mm
Head Tube Length 94mm 103mm 118mm 134mm
Seat Angle 71.1° 71.1° 71.1° 71.1°
Head Angle 67.1° 67.1° 67.1° 67.1°
Wheel Base 1098mm 1119mm 1140mm 1161mm
Chain Stay Length 435mm 435mm 435mm 435mm
Standover Height 28.1" 29.8" 29.9" 30.3"
Stack 571mm 580mm 595mm 610mm
Reach 371mm 388mm 409mm 418mm
Sizing 5'0" - 5'5" 5'4" - 5'9" 5'9" - 6'2" 6' - 6'6"

Check out employee reviews of the Mojo 650b from our recent Ibis Demo Day here!

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Free Shipping Offer

Get free Standard Shipping with your $50 purchase today! Just choose Standard Shipping during checkout.

Please note this offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and oversize charges still apply on some heavy/large items.