Trek Marlin 5 Gen 3 2026 – Fury Red

Trek Marlin 5 Gen 3 2025 – Trail-Ready Hardtail with Modern Attitude
Zipping through town, dipping your toes into the trail for the first time or slicing through switchbacks, no matter where you roll, the Marlin is a confidence-inspiring hardtail that’s ready for anything. With versatile trail geometry and Smart Wheel Sizing, this hardtail MTB is built to tackle everything. There’s a good reason it’s the world’s favourite Trek.
Geometry
Spec
14.5″
15.5″
17.5″
18.5″
19.5″
21.5″
23″
Frame size letter
XS
S
M
ML
L
XL
XXL
Wheel size
27.5″
27.5″
29″
29″
29″
29″
29″
A — Seat tube
34.0
37.0
41.9
44.4
47.0
52.1
55.9
B — Seat tube angle
73.8°
73.8°
71.9°
71.9°
71.9°
71.9°
71.9°
Effective seat tube angle
74.0°
74.0°
73.0°
73.0°
73.0°
73.0°
73.0°
C — Head tube length
9.0
10.0
9.0
9.0
10.0
12.0
12.0
D — Head angle
66.5°
66.5°
69.5°
69.5°
69.5°
69.5°
69.5°
E — Effective top tube
55.1
57.9
60.2
61.8
63.8
65.9
67.3
F — Bottom bracket height
31.3
31.3
31.0
31.0
31.0
31.0
31.1
G — Bottom bracket drop
4.5
4.5
5.8
5.8
5.8
5.8
5.8
H — Chainstay length
43.3
43.3
43.8
43.8
43.8
43.8
43.8
I — Offset
4.2
4.2
4.2
4.2
4.2
4.2
4.2
J — Trail
11.0
11.0
9.3
9.3
9.3
9.3
9.3
K — Wheelbase
109.2
112.1
110.0
111.6
113.7
115.9
117.3
L — Standover
65.8
69.2
74.8
75.8
75.7
76.9
80.4
M — Frame reach
39.0
41.5
41.8
43.4
45.1
46.6
48.0
N — Frame stack
56.3
57.2
60.2
60.2
61.1
63.0
63.0