MountainFramesetVerified spec

2026 Trek Top Fuel AL Gen 4 Frameset

Launched at $2,700

Own a 2026 Trek Top Fuel AL Gen 4 Frameset?

Track its value in your garage, or list it for sale locally in a few taps.

What a used one is worth

New

$2,700

$2,700 to $2,700

Like new

$2,565

$2,565 to $2,565

Excellent

$2,430

$2,430 to $2,430

Good

$2,025

$2,025 to $2,025

Fair

$1,485

$1,485 to $1,485

For parts

$810

$810 to $810

From the launch price, aged to 2026 and adjusted for condition. Guidance from our catalog, not an appraisal.

L: Reach mm: 482; Stack mm: 608; Chainstay mm: 439; Wheelbase mm: 1227; Head angle deg: 65.9; Seat angle deg: 76.3
M: Reach mm: 452; Stack mm: 599; Chainstay mm: 434; Wheelbase mm: 1188; Head angle deg: 65.9; Seat angle deg: 77.3
S: Reach mm: 422; Stack mm: 566; Chainstay mm: 434; Wheelbase mm: 1150; Head angle deg: 65.9; Seat angle deg: 76.5
ML: Reach mm: 467; Stack mm: 604; Chainstay mm: 439; Wheelbase mm: 1210; Head angle deg: 65.9; Seat angle deg: 76.6
XL: Reach mm: 512; Stack mm: 626; Chainstay mm: 444; Wheelbase mm: 1270; Head angle deg: 65.9; Seat angle deg: 75.6

Sold across model years 2025-2026 under one product code. Price as shown on Trek's US site, 2025-08 capture.

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