2026
2026 Trek Top Fuel RSL Gen 4
Reach 457 to 516 mm, stack 596 to 623 mm. The Top Fuel RSL Gen 4 build comes with Bontrager Kovee Elite 30 wheels.
Source: trekbikes.com. Checked .
Key facts
- Brand
- Trek
- Model
- Top Fuel
- Model year
- 2026
- Frame
- RSL Gen 4
- Geometry labels
- M, ML, L, and XL
- Wheels
- Bontrager Kovee Elite 30
- Geometry
- Complete for every size
- Source
- trekbikes.com
- Checked
Geometry by size
| Measurement | M | ML | L | XL |
|---|---|---|---|---|
| Reach(mm) | 457 | 472 | 486 | 516 |
| Stack(mm) | 596 | 600 | 604 | 623 |
| Head tube angle(°) | 66.4 | 66.4 | 66.4 | 66.4 |
| Seat tube angle(°) | 77.8 | 77.1 | 76.8 | 76.1 |
| Effective top tube(mm) | 586 | 609 | 629 | 671 |
| Chainstay length(mm) | 434 | 439 | 439 | 444 |
| Wheelbase(mm) | 1184 | 1207 | 1224 | 1267 |
| BB drop(mm) | 29 | 29 | 29 | 29 |
| BB height(mm) | 344 | 344 | 344 | 344 |
| Standover(mm) | 745 | 748 | 749 | 753 |
| Seat tube length(mm) | 410 | 420 | 435 | 470 |
| Head tube length(mm) | 105 | 110 | 115 | 135 |
Stock build
4 parts
Suspension
RockShox Sid SL Ultimate
Wheels & Tires
Cockpit
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Quick answers
- Which size or configuration labels have geometry for the 2026 Trek Top Fuel RSL Gen 4?
- Geometry is listed for M, ML, L, and XL.
- What are the reach and stack of the 2026 Trek Top Fuel RSL Gen 4 in size L?
- In size L, reach is 486 mm and stack is 604 mm.
- What is the head tube angle of the 2026 Trek Top Fuel RSL Gen 4?
- The head tube angle is 66.4 degrees in every size.
- What does the 2026 Trek Top Fuel RSL Gen 4 ship with?
- The stock build includes RockShox Sid SL Ultimate, Bontrager Kovee Elite 30, and Bontrager RSL.
- Which years of the Trek Top Fuel are on Quiver?
- Quiver has the Trek Top Fuel for 2026, 2027, 2025, 2024, 2021, 2020, 2019, 2018, 2017, 2016, 2011, and 2010.
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