Trek's Marlin is a versatile mountain bike, ideal for anyone starting out in the sport or looking for a bike that can be used for commuting or light trail centre duties.

Wheel sizes grow with the bikes, with XS and Small using 27.5 wheels and the rest of the range using 29" wheels. The XS size has a curved top tube for more stand over clearance, and all sizes have mounts ready for stands or racks.

There's a good range of well-specced price points, and all models share the same trail-friendly frame with internal cable routing and modern geometry.

Trek Marlin Geometry & Sizing

Trek Marlin Geometry

Sizes in MM XS (27.5) S (27.5) M (29) ML (29") L (29") XL ( 29") XL ( 29")
A: Stack 563 572 602 602 611 630 630
B: Reach 390 415 418 434 451 466 480
C: Head Tube
Angle
66.5° 69.5°
D: Head Tube
Length
90 100 90 90 100 120 120
E: Effective
Seat Tube Angle
74° 73°
F: Seat Tube
Length
340 370 419 444 470 521 559
G: Effective
Top Tube
551 579 602 618 638 659 673
H: BB Height 313 310 311
I: BB Drop 45 58
J: Chainstay Length 433 438
K: Wheelbase 1092 1121 1100 1116 1137 1159 1173
L: Standover 658 692 748 758 757 769 804
M: Fork Offset 42 46
Seatpost Diameter 31.9
Size Rider Height
XS 145cm-155cm 4'9"-5'1"
S 155cm-165cm 5'1"-5'5"
M 165cm–177cm 5'5"-5'10"
L 177cm–188cm 5'10"-6'2"
XL 188cm–195cm 6'2"'-6'5"
XXL 195cm–203cm 6'5"'-6'8"