Description

Trek Top Fuel 9 Gen 4 Bike 2025 Overview

Build

Frame

Alpha Platinum Aluminum, internal storage, tapered head tube, internal guided routing, downtube guard, alloy rocker link, 4-way Mino Link, ABP, Boost148, 120mm travel

BB Standard: BSA, 73mm, Threaded

Hanger Standard: UDH

Tire Clearance: 2.5″

Colors: Juniper; Buff Beige

Fork

Fox Rhythm 34, Float EVOL air spring, GRIP damper, tapered steerer, 44mm offset, Boost110, 15mm Kabolt axle, 130mm travel

Travel: 130mm

Spring Type: Air

Shock

Fox Performance Float DPS, 2-position damper, 185mm x 50mm

Travel: 120mm

Bottom Bracket

SRAM DUB MTB Wide, 73mm, BSA threaded

Stem

Bontrager Elite, 35mm, 0 degree, 45mm length

Handlebar

Bontrager Line, alloy, 35mm, 27.5mm rise, 780mm width

Saddle

Verse Short Comp, steel rails, 145mm width

Seatpost

Size: S, Bontrager Line Dropper, 100mm travel, MaxFlow, internal routing, 34.9mm, 310mm length; Size: M, ML, L, XL, Bontrager Line Dropper, 170mm travel, MaxFlow, internal routing, 34.9mm, 450mm length

Type: Dropper

Grips

Bontrager XR Trail Comp, nylon lock-on

Groupset

Rear Derailleur

SRAM GX Eagle AXS, T-Type

Crank

SRAM GX Eagle, T-Type, DUB, 30T, 55mm chainline, 170mm length

Shifters

SRAM AXS POD

Cassette

SRAM Eagle XS-1275, T-Type, 10-52, 12 speed

Chain

SRAM GX Eagle, T-Type, 12 speed

Brakes

SRAM Level Bronze 4-piston hydraulic disc

Type: Hydraulic Disc

Wheels

Rims

Front: Size: S, Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 27.5”; Size: M, ML, L, XL, Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 29”, Rear: Size: S, Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Boost148, 12mm thru axle, 27.5”; Size: M, ML, L, XL, Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Boost148, 12mm thru axle, 29”

Tires

Size: S, Bontrager Gunnison Pro XR, Tubeless Ready, wire bead, 60 tpi, 27.5×2.40”; Size: M, ML, L, XL, Bontrager Gunnison Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29×2.40”

Disc Rotors

SRAM CenterLine, 6-bolt, round edge, 180mm

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