2021 Trek FX Disc vs 2023 Trek Checkpoint SL
The 56 is the Trek Checkpoint SL size closest to your L Trek FX Disc. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.
What changes on the Trek Checkpoint SL
Compared with the Trek FX Disc in L, the Trek Checkpoint SL in 56 places the top of the head tube 6 mm higher and 9 mm further forward, relative to the bottom bracket. Its wheelbase is 22 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- +6 mm
- Higher front end
- Frame reach
- +9 mm
- Longer frame reach
- Wheelbase
- −22 mm
- Shorter: quicker to change direction
- Head angle
- +0.7°
- Steeper: sharper steering
- Chainstays
- −15 mm
- Shorter: livelier
The two frames
We can't draw these frames yet. The Trek FX Disc numbers we have for size L are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek FX Disc L | Trek Checkpoint SL 56 | Difference |
|---|---|---|---|
| Reach | 398 | 407 | +9 mm |
| Stack | 586 | 592 | +6 mm |
| Head tube angle | 71.5° | 72.2 | +0.7° |
| Effective top tube | 571 | 584 | +13 mm |
| Chainstay length | 450 | 435 | −15 mm |
| Wheelbase | 1070 | 1048 | −22 mm |
| BB drop | 65 | not listed | |
| BB height | 296 | not listed | |
| Standover | 799 | 809 | +10 mm |
| Seat tube length | 508 | not listed | |
| Head tube length | 160 | not listed | |
| Seat tube angle | not listed | 72.8 |
Differences are the Trek Checkpoint SL minus the Trek FX Disc. Full charts: 2021 Trek FX Disc, 2023 Trek Checkpoint SL.
Where each sits in its class
Trek FX DiscTrek Checkpoint SL
Each bike is ranked against the other gravel bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.
What each ships with
The stock build of each bike's first listed trim. Parts that match are dimmed.
| Part | Trek FX Disc1 Disc | Trek Checkpoint SLSL 5 |
|---|---|---|
| Frame | Trek Alpha Gold | Trek Checkpoint SL |
| Fork | Trek FX | Trek Checkpoint SL |
| Shifter | Shimano Altus EF500 | Shimano GRX RX600 |
| Derailleur | Shimano Tourney TY510, Shimano Acera M310 | Shimano GRX RX810, Shimano GRX RX810 Long Cage |
| Cassette | SunRace MFM300 | Shimano HG700-11 105 |
| Chain | KMC Z7 | Shimano HG601 105 |
| Bottom bracket | VP BC73 | Praxis T47 |
| Tire | Bontrager H2 Comp | Bontrager GR1 Team Issue |
| Hub | Formula DC20, Formula DC-31 | not listed |
| Rim | Bontrager Connection | Bontrager Paradigm SL |
| Brake | Tektro MD-U310 | Shimano GRX RX400 |
| Crankset | not listed | Shimano GRX RX600 |
| Chainring | not listed | Shimano GRX RX600 |
| Wheelset | not listed | Bontrager Paradigm SL |
| Rotor | not listed | Shimano SM-RT70 |
| Handlebar | not listed | Bontrager Elite Gravel |
| Stem | not listed | Bontrager Elite |
| Bar tape | not listed | Bontrager Supertack Performance |
| Headset | not listed | Trek Integrated |
| Seatpost | not listed | Bontrager Carbon |
| Saddle | not listed | Bontrager P3 Verse |
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