JAM Evo 29

Geometry Specification

JAM Evo 29 Features

Robust and lightweight aluminium frame with 130 mm suspension travel, 148 mm Boost standard

Fox 34 Rhythm fork and Float shock

DT Swiss M1900 wheels and Maxxis Minion tyres

Conquers every mountain

  • Optimal suspension performance in any situation

    The F.O.L.D. chassis, which has been specially designed to meet the diverse demands placed on it by All-mountain riding, provides a perfectly balanced mix: F.O.L.D. is extremely sensitive while being progressive enough to prevent a harsh bottom out.

  • Lightweight, robust and low-maintenance

    High-quality bearings, closed triangle chainstay and a damper protected from dirt – we leave nothing to chance. We have also given thought to the bottle holder.

  • Handling characteristics matter

    Since the primary purpose of mountain bikes is to bring pleasure, we have designed the JAM with a modern, agile and aggressive geometry.


Frame size cm 42 44 48 51
A Size (MM) 420 440 480 510
B Effective Top Tube (MM) 575 595 624 652
C Head Tube Angle (°) 67.8 67.8 67.8 67.8
D Effective Seat Tube Angle (°) 74.5 74.5 74.5 74.5
E Chainstay (MM) 440 440 440 440
F BB Drop (MM) 33 33 33 33
G Head Tube Length (MM) 110 110 135 155
H Fork Length (MM) 540 540 540 540
I Fork Offset (MM) 51 51 51 51
J Wheelbase (MM) 1148 1168 1197 1225
K Stack (MM) 618 618 641 660
L Reach (MM) 415 435 455 475


6066 aluminium, BSA BB, 148x12 through axle, internal cable routing, Post Mount 180 mm
Fox 34 Rhythm, 110x15 mm QR, 130 mm travel
Rear shock
Fox Float Performance, 210/50, hardware: shaft25,0x8 mm/body25,0x8 mm, custom tune
Shimano Deore XT
Front derailleur
Shimano Deore XT 8000, direct mount
Rear derailleur
Shimano Deore XT 8000, 11-speed
Sprocket description
Shimano Deore XT, 11-42T
Crankset description
Shiamno XT, 36/26T
BBB, aluminium, flatbar, 760mm, rise: 0mm, backsweep: 9degree
BBB, aluminium, 31.8mm
Saddle description
Focus Trail Saddle
KindShock E30i, 31,6mm, internal
Shimano Deore XT M8000, 180 mm / 180 mm
DT Swiss M1900 TLC, 622-30, 148x12 mm / 110x15 mm
Tire Description
Minion DHF 2.3 3C/TR/ EXO, foldable
Chain ring
Seatpost type
Dropper seatpost
Shifting type
Mechanical shifting
130 mm