2018 Trek Procaliber AL Frameset vs 2019 Specialized Chisel
The XL is the Specialized Chisel size closest to your XXL Trek Procaliber AL Frameset. 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 Specialized Chisel
Compared with the Trek Procaliber AL Frameset in XXL, the Specialized Chisel in XL places the top of the head tube 10 mm higher and 9 mm further back, relative to the bottom bracket. Its wheelbase is 12 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- +10 mm
- Higher front end
- Frame reach
- −9 mm
- Shorter frame reach
- Wheelbase
- −12 mm
- Shorter: quicker to change direction
- Head angle
- +0.2°
- About the same head angle
- Chainstays
- −5 mm
- Shorter: livelier
The two frames
We can't draw these frames yet. The Trek Procaliber AL Frameset numbers we have for size XXL are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Procaliber AL Frameset XXL | Specialized Chisel XL | Difference |
|---|---|---|---|
| Reach | 471 | 462mm | −9 mm |
| Stack | 623 | 633mm | +10 mm |
| Head tube angle | 69.6° | 69.8° | +0.2° |
| Effective top tube | 673 | not listed | |
| Chainstay length | 435 | 430mm | −5 mm |
| Wheelbase | 1166 | 1154mm | −12 mm |
| BB drop | 58 | 57.5mm | −1 mm |
| BB height | 311 | 312.5mm | +2 mm |
| Standover | 847 | 845mm | −2 mm |
| Seat tube length | 559 | 520mm | −39 mm |
| Head tube length | 120 | 125mm | +5 mm |
| Seat tube angle | not listed | 74° | |
| Fork length | not listed | 506mm |
Differences are the Specialized Chisel minus the Trek Procaliber AL Frameset. Full charts: 2018 Trek Procaliber AL Frameset, 2019 Specialized Chisel.
Where each sits in its class
Trek Procaliber AL FramesetSpecialized Chisel
Each bike is ranked against the other XC 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 Procaliber AL FramesetAL Frameset | Specialized ChiselChisel Frame |
|---|---|---|
| Frame | Trek Alpha Platinum | Specialized D'Aluisio Smartweld M5 |
| Bottom bracket | Trek PF92 | not listed |
| Headset | FSA IS2 | not listed |
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