Mojo HD4

2018–2020

Mojo HD4: Back in Black
Mojo HD4 complete xt black
Mojo HD4: Fireball Red
Mojo HD4 complete x01 red
Mojo HD4: Añejo Silver & Lime
Mojo HD4 complete x01 silver

The HD4’s reputation was defined by winning the overall team title in the Enduro World Series. Built for speed, it excels on steep terrain. While slaying the rowdiest descents may be expected of a world class enduro bike, sprinting back to the top is not. Thanks to the dw-link suspension design, cries of “That thing flies uphill” are common among the slack jawed first time riders.

Frame Material Carbon Fiber Monocoque
Frame Weight 6.4 lbs. (Medium)
Wheel Size 27.5” (650b) / up to 2.8 tires
Front Travel 160–170mm forks
Rear Travel 153mm (6 inches)
Shock Specs 7.875 x 2.25" / 200 x 57mm
Boost Axles 148mm rear / 110mm front
Seatpost Diameter 31.6mm
Rear Brake 160mm post mount / 203mm max
Chainstay Length 430mm (16.9 inches)
Bottom Bracket Threaded (68mm English threaded)
ISCG 05 Compatible Optional removable adapter
Tapered Headtube ZS44 upper / ZS56 lower
Colors Fireball Red or Back in Black
Sizes S / M / L / XL
Frame Warranty 7 years
Years Manufactured 2018–2020

Archived Build Kits for the Mojo HD4

Build kits show components included when the Mojo HD4 was last available.

Frame Only

Component Standard Component
Shock Fox Float Performance Series DPX2 7.875 x 2.25

GX Eagle

Component Standard Component
Fork Fox Float 36 Performance Series 160mm, 27.5”, 15QR
Shock Fox Float Performance Series DPX2 7.875 x 2.25
Wheels 738 Alloy, Ibis Hubs
Tires Maxxis 27.5 x 2.6 Minion DHF WT
Brakes Shimano Deore 4 piston
Brake Rotors Shimano SM-RT66 180
Crankset SRAM Descendant Alloy 175, DUB spindle, 32t Alloy Ring (170,175)
Bottom Bracket SRAM DUB BSA
Rear Derailleur SRAM Eagle GX 12 Speed
Shift Levers SRAM Eagle GX 12 Speed
Cassette SRAM XG 1275 10-50 12 speed
Chain SRAM Eagle GX with Power Lock, 12 speed
Headset Cane Creek 40 ZS44/ZS56
Grips Lizard Skins Charger Evo
Handlebars Ibis 780mm Alloy
Stem Ibis 31.8mm (50, 60, 70, 80, 90mm)
Seatpost Bike Yoke Revive Dropper (125, 160 or 185mm). Note there is a 250lb rider weight limit on this post.
Saddle WTB Silverado 142

XT

Component Standard Component
Fork Fox Float 36 Performance Series 160mm, 27.5”, 15QR
Shock Fox Float Performance Series DPX2 7.875 x 2.25
Wheels 738 Alloy, Ibis Hubs
Tires Maxxis 27.5 x 2.6 Minion DHF WT
Brakes Shimano XT M8000 4 piston
Brake Rotors Shimano SM-RT86 180
Crankset Shimano XT M8000 175, 24mm spindle, 30t Alloy Ring
Bottom Bracket Shimano XT MT800
Rear Derailleur Shimano XT Shadow Plus
Shift Levers Shimano XT
Cassette Shimano XT 11-46
Chain CN-HG700-11
Headset Cane Creek 40 ZS44/ZS56
Grips Lizard Skins Charger Evo
Handlebars Ibis 800mm Carbon (10 or 30mm rise)
Stem Thomson Elite X4 Stem (40, 50, 60, 70, 80, 90, 100, 110)
Seatpost Bike Yoke Revive Dropper (125, 160 or 185mm). Note there is a 250lb rider weight limit on this post.
Saddle WTB Silverado 142

XTR

Component Standard Component
Fork Fox Float 36, Factory Series, Fit Grip 2, Kashima, 160mm, 27.5”, 15QR BOOST
Shock Fox Float Performance Series DPX2 7.875 x 2.25
Wheels 742 Carbon, i9 Hubs
Tires Maxxis 27.5 x 2.6 Minion DHF WT
Brakes Shimano XTR M9120 4 piston
Brake Rotors Shimano RT-MT900 180mm
Crankset Race Face Next R 175 or 170mm, 32t Alloy Ring
Bottom Bracket Race Face BSA
Rear Derailleur Shimano XTR M9100 12 Spd
Cassette Shimano XTR M9100 12 Spd 10-51T
Chain Shimano XTR M9100 12 Spd
Headset Cane Creek 40 ZS44/ZS56
Grips Lizard Skins Charger Evo
Handlebars Enve M6 Bar 780mm
Stem Enve Mtn Stem 31.8mm (40, 55, 70mm)
Seatpost Bike Yoke Revive Dropper (125, 160 or 185mm). Note there is a 250lb rider weight limit on this post.
Saddle WTB Silverado Team

X01 AXS

Component Standard Component
Fork Fox Float 36 Performance Series 160mm, 27.5”, 15QR
Shock Fox Float Performance Series DPX2 7.875 x 2.25
Wheels 738 Alloy, Ibis Hubs
Tires Maxxis 27.5 x 2.6 Minion DHF WT
Brakes Shimano XT M8000 4 piston
Brake Rotors Shimano SM-RT86 180
Crankset SRAM X01 Eagle (170mm or 175mm), DUB spindle, 32t Alloy Ring
Bottom Bracket SRAM DUB BSA
Rear Derailleur SRAM X01 Eagle AXS
Shift Levers SRAM X01 AXS 2 Button Eagle Triggers
Cassette SRAM XG 1295 EAGLE 10-50T
Chain SRAM X01 EAGLE Powerlock 12 speed chain
Headset Cane Creek 40 ZS44/ZS56
Grips Lizard Skins Charger Evo
Handlebars Ibis 800mm Carbon (10 or 30mm rise)
Stem Thomson 40, 50 or 60mm, or Ibis 60 or 70mm
Seatpost AXS Reverb (125mm, 150mm, 170mm)
Saddle WTB Silverado 142

The latest setup guide/s for the Mojo HD4:

Setup Guide .pdf Torque Specs .pdf

Mojo HD4 geo layer

160mm Fork (552mm axle to crown)

Nominal Size   Small Medium Large X-Large
Seat Tube Length A 362 14.3 393 15.5 445 17.5 483 19
Top Tube Length B 579 22.8 604 23.8 628 24.7 658 25.9
Head Tube Length (4mm stack of lower cup not included) C 87 3.4 109 4.3 126 5 142 5.6
Chainstay Length D 430 16.9 430 16.9 430 16.9 430 16.9
Seat Tube Angle E 74° 74° 74° 74° 74° 74° 74° 74°
Head Tube Angle F 64.9° 64.9° 64.9° 64.9° 64.9° 64.9° 64.9° 64.9°
Wheelbase G 1163 45.8 1192 46.9 1219 48 1251 49.3
BB Height (with 2.5 Maxxis Minons) 343 13.5 343 13.5 343 13.5 343 13.5
Stack 570 22.4 590 23.2 605 23.8 620 24.4
Reach 415 16.3 435 17.1 455 17.9 480 18.9
Standover 693 27.3 715 28.1 729 28.7 757 29.8
Trail 118 4.6 118 4.6 118 4.6 118 4.6

Sizing Guide (Rider Height)

s
152–165CM5'0"–5' 5"
m
163–175CM5'4"–5' 9"
l
173–185CM5'8"-6'1"
xl
183–198CM6'–6'6"

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.

IMPORTANT: Before riding, check the saddle to tire clearance with the dropper post fully dropped and the air out of the shock with frame compressed to bottom out.

Saddle height used for dropper measurements:

49mm rails-to-top.

Frame measurement S M L XL
Center-to-Top (mm) 365 396 448 486
Max Insertion (mm) 225 255 255 280

Bike Yoke

Measurement from center BB to center of saddle rail (mm)

Drop Min/Max S M L XL
185 Min 625 626 678 713
  Max 720 751 803 841
160 Min 575 598 650 688
  Max 700 731 783 821
125 Min 532 563 615 653
  Max 650 681 733 771

Fox Transfer

Measurement from center BB to center of saddle rail (mm)

Drop Min/Max S M L XL
150 Min 595 606 658 696
  Max 720 751 803 841
125 Min 551 582 634 672
  Max 670 701 753 791
100 Min 526 557 609 647
  Max 620 651 703 741

KS Lev

Measurement from center BB to center of saddle rail (mm)

Drop Min/Max S M L XL
175 Min 603 622 674 712
  Max 716 747 799 837
150 Min 566 597 649 687
  Max 676 707 759 797
125 Min 540 571 623 661
  Max 626 657 709 747
100 Min 515 546 598 636
  Max 586 617 669 707