
The Mojo V4 features a 76.6‑degree, get-you-up-that-hill seat tube angle, our shortest chainstays, and a spacious reach with a 65.4‑degree headtube angle. This enchanting combination rolls on 27.5” wheels, to deliver that hoverbike feel with on-trail confidence.

Since 2005, we’ve partnered with suspension guru Dave Weagle on the dw-link suspension platform. It provides an unparalleled combination of climbing efficiency and downhill performance, which has been proven repeatedly at the highest levels of racing.

Our custom-tuned suspension features extra light high-speed compression and rebound damping to deliver unparalleled traction. When paired with our dw-link suspension platform, Traction Tune allows the Mojo to track like a big bike without compromising crisp pedaling performance. To learn more about our Traction Tune philosophy, click here.

All four sizes have low standover heights and shortened seat tubes for long dropper posts. Now you can choose your frame based on reach — riders 5‑feet tall easily fit on a small and still enjoy a 125mm dropper, while most medium and up riders can enjoy a 185mm. All sizes fit at least a 22oz water bottle with a side loader bottle cage.

Reduced-offset forks give the front wheel greater stability at speed and an additional sense of steadiness at slow speeds too. The Mojo is designed to excel in technical, demanding terrain, and the 37mm-offset gives that extra bit of confidence and control in the most challenging situations.

The Mojo has clearance for 27.5”x2.6” tires. You can run overbuilt, chunky tires; you can run light, big volume fast tires, but whatever you run, know that you’re not limited by width.

Tired of hitting “purchase” on another set of bearings each season? So were we. That’s why we use bushings where they make sense, and bearings where they don’t. The IGUS bushings in our lower link are lighter and stiffer than bearings, and virtually maintenance free. We believe so strongly in them, we back them with a free lifetime replacement.

All our bikes are built from the highest grade materials and optimized for the best strength, weight, stiffness, and ride performance — no matter how much you spend. The Mojo weighs a svelte 5.9 lbs with an inline shock and complete builds start at 26.7 lbs.

Bikes that look pretty on the outside, should look pretty on the inside. We use carbon fiber tubes molded within each frame. Push the cable in, watch it pop out, a beautiful moment indeed.

There if you want it, removable if you don’t.

A polycarbonate downtube protector deflects debris, while molded rubber swing arm protectors keep things quiet and clean. And our simple-yet-elegant linkage protectors stop mud and rocks thrown by the tire, keeping your beautiful bike beautiful.

If it’s our fault, we’ll fix it. Simple as that.
Modern trailbike geometry
Nimble yet massively capable.

With 140mm fork (529mm axle to crown)
Nominal Size | Small | Medium | Large | X-Large | |
---|---|---|---|---|---|
Seat Tube Length | A | 360 14.2 | 368 14.5 | 419 16.5 | 470 18.5 |
Top Tube Length | B | 580 22.8 | 603 23.7 | 632 24.9 | 666 26.2 |
Head Tube Length (4mm stack of lower cup not included) | C | 109 4.3 | 126 5 | 142 5.6 | 158 6.2 |
Chainstay Length | D | 425 16.7 | 425 16.7 | 425 16.7 | 425 16.7 |
Seat Tube Angle | E | 76.6° 76.6° | 76.6° 76.6° | 76.6° 76.6° | 76.6° 76.6° |
Head Tube Angle | F | 65.4° 65.4° | 65.4° 65.4° | 65.4° 65.4° | 65.4° 65.4° |
Wheelbase | G | 1166 45.9 | 1193 47 | 1225 48.2 | 1262 49.7 |
BB Height (with Maxxis Minion DHF 2.6" tires) | 340 13.4 | 340 13.4 | 340 13.4 | 340 13.4 | |
Stack | 586 23.1 | 601 23.7 | 616 24.3 | 630 24.8 | |
Reach | 440 17.3 | 460 18.1 | 485 19.1 | 515 20.3 | |
Trail | 123 4.8 | 123 4.8 | 123 4.8 | 123 4.8 | |
Standover | 680 26.8 | 690 27.2 | 720 28.3 | 742 29.2 | |
Saddle height for seat tube angle | 640 25.2 | 690 27.2 | 760 29.9 | 810 31.9 |
Sizing Guide (Rider Height)
Frame Material | Carbon Fiber Monocoque |
Frame Weight | 5.9lbs w/ Fox DPS |
Complete Build Weight | Starting at 26.7 lbs |
Wheel Size | 27.5" |
Front Travel | 140mm (37mm rake recommended) |
Rear Travel | 130mm (dw-link) |
Shock Specs | 210 x 50mm |
Boost Axles | 148mm rear / 110mm front |
Seatpost Diameter | 31.6mm |
Rear Brake | 160mm post mount (203mm max rotor) |
Chainstay Length | 425mm |
Bottom Bracket | Threaded BB (73mm BSA) |
ISCG 05 Compatible | ISCG 05 Tab Mount available separately |
Headset | ZS44 upper / ZS56 lower |
Cable Routing | In-frame molded cable tunnels |
Bottle Compatible | 22oz bottles fit inside front triangle |
Colors | Dirty White Board or Blue Dream |
Sizes | S / M / L / XL |
Frame Warranty | 7 years (lifetime replacement on bushings) |
Mojo Specific FAQs
All our manuals are available here.
The Mojo can accommodate up to a 27.5” x 2.6” tire.
The max chainring for a Mojo is a 34t.
Yes, the max size oval chainring we recommend is a 32T. Not all oval chainrings are the same, so we recommend double checking clearance before installation.
You can find torque specs for the Mojo in the tab on the right.
For now, no. The Ripmo AF was our first aluminum bike in 18 years. Depending on the market reaction to that model, we’ll decide whether or not to pursue more “AF” models.
No, the Fox 36 has a larger axle to crown height and stiffer chassis than the Fox 34. A 140mm Fox 36 will put too much stress on the frame's headtube. A 140mm-150mm travel RockShox Pike is compatible with the Mojo 4.
The Mojo uses 160mm post mount rear brake mounts.
To run a 180mm rotor, you'll use the following Shimano part number: SM-MA-F180P / P2
To run a 203mm rotor, you'll use the following Shimano part number: SM-MA-F203P / P
For more information, the following is a link to the adaptor chart:
No. The leverage ratio on the Mojo is not coil-compatible.
Yes, but the bike is optimized around a 37mm offset. The 44mm offset fork shortens the trail (the distance between the contact patch and the steering axis), which can cause the front end to feel less stable.
General FAQs
To see our general FAQs click here.
Dropper Post Saddle Height Calculations
Do not try to insert your post deeper than these measurements. Forcing the post can result in a seat tube failure.
Frame measurement | S | M | L | XL |
---|---|---|---|---|
Center-to-Top | 363 | 371 | 423 | 486 |
Max Insertion | 200 | 225 | 275 | 275 |
Bike Yoke Revive
Measurement from center BB to center of saddle rail (mm)
Drop | Min/Max | S | M | L | XL |
---|---|---|---|---|---|
185 | Min | 648 | 631 | 650 | 713 |
Max | 718 | 726 | 778 | 841 | |
160 | Min | 598 | 581 | 625 | 688 |
Max | 698 | 706 | 758 | 821 | |
125 | Min | 530 | 538 | 590 | 653 |
Max | 648 | 656 | 708 | 771 |
Fox Transfer
Measurement from center BB to center of saddle rail (mm)
Drop | Min/Max | S | M | L | XL |
---|---|---|---|---|---|
150 | Min | 618 | 601 | 633 | 696 |
Max | 718 | 726 | 778 | 841 | |
125 | Min | 569 | 557 | 609 | 672 |
Max | 668 | 676 | 728 | 791 | |
100 | Min | 524 | 532 | 584 | 647 |
Max | 618 | 626 | 678 | 741 |
KS Lev
Measurement from center BB to center of saddle rail (mm)
Drop | Min/Max | S | M | L | XL |
---|---|---|---|---|---|
175 | Min | 626 | 609 | 649 | 712 |
Max | 714 | 722 | 774 | 837 | |
150 | Min | 576 | 572 | 624 | 687 |
Max | 674 | 682 | 734 | 797 | |
125 | Min | 538 | 546 | 598 | 661 |
Max | 624 | 632 | 684 | 747 | |
100 | Min | 513 | 521 | 573 | 636 |
Max | 584 | 592 | 644 | 707 |
Reverb
Measurement from center BB to center of saddle rail (mm)
Drop | Min/Max | S | M | L | XL |
---|---|---|---|---|---|
170 | Min | 643 | 626 | 658 | 721 |
Max | 763 | 771 | 823 | 886 | |
150 | Min | 603 | 586 | 638 | 701 |
Max | 723 | 731 | 783 | 846 | |
125 | Min | 553 | 561 | 613 | 676 |
Max | 673 | 681 | 733 | 796 | |
100 | Min | 528 | 536 | 588 | 651 |
Max | 623 | 631 | 683 | 746 |
Hardware | Torque Spec (Nm) | Thread Treatment / Notes |
---|---|---|
Clevis to Swingarm Bolts | 15 | Titanium Bolts: Loctite 243 on threads, Ti anti-seize under head of bolt |
Derailleur Hanger Bolt | 5 | Grease |
Downtube Rock Guard | 2 | Loctite 243 |
Forward Shock Mount Bolt | 10 | Loctite 243 on threads, grease under head of bolt or mylar washer |
Lower Link 6mm Preload Bolts | 2 | Loctite 243 on threads, grease on flange |
Lower Link 5mm Pinch Bolts | 10 | Loctite 243 |
Lower Shock to Clevis Bolt | 20 | Ti anti-seize |
Rear Brake Caliper | 6 | Loctite 243 |
Seat Binder | 5 | Ti anti-seize |
Upper Link Bolts | 10 | Loctite 243 |
Bushings | - | Apply Slick Honey (grease) to all bushings during reassembly |
Hexle | - | There is not a numerical torque figure for the Hexle. We recommend tightening the 5mm with your multi tool that you carry with you. This way you’ll be able to remove it in case of a flat out on a ride. |