2021 Norco Optic C Frame Kit vs 2022 Specialized Stumpjumper Comp
We can't match sizes for these two: one of them has no stack and reach for the sizes shown.
What changes on the Specialized Stumpjumper Comp
- Frame stack
- n/a
- One of the bikes has no number for this
- Frame reach
- +50 mm
- Longer frame reach
- Wheelbase
- +72 mm
- Longer: steadier at speed
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- +12 mm
- Longer: more planted
The two frames
Only the Norco Optic C Frame Kit is drawn. The Specialized Stumpjumper Comp numbers we have for size S5 are missing the stack.
Geometry side by side
| Measurement | Norco Optic C Frame Kit M | Specialized Stumpjumper Comp S5 | Difference |
|---|---|---|---|
| Reach | 450 | 500 | +50 mm |
| Stack | 620 | not listed | |
| Head tube angle | 65.0 | 65 | ±0.0° |
| Seat tube angle | 76.0 | 76 | ±0.0° |
| Effective top tube | 605 | not listed | |
| Chainstay length | 430 | 442 | +12 mm |
| Wheelbase | 1196 | 1268 | +72 mm |
| BB height | 337 | 333 | −4 mm |
| Standover | 680 | 757 | +77 mm |
| Seat tube length | 415 | 445 | +30 mm |
| Head tube length | 110 | 130 | +20 mm |
| BB drop | not listed | 42 | |
| Fork length | not listed | 550mm |
Differences are the Specialized Stumpjumper Comp minus the Norco Optic C Frame Kit. Full charts: 2021 Norco Optic C Frame Kit, 2022 Specialized Stumpjumper Comp.
Where each sits in its class
Norco Optic C Frame KitSpecialized Stumpjumper Comp
AggressivePositionUpright
CalmSteeringQuick
PlayfulBalancePlanted
Each bike is ranked against the other trail 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 | Norco Optic C Frame KitC Frame Kit | Specialized Stumpjumper Comp |
|---|---|---|
| Rear shock | RockShox Super Deluxe DH Custom RC Ultimate | not listed |
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