2020 Trek Wahoo vs 2021 Specialized Riprock 20
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 Riprock 20
- Frame stack
- n/a
- One of the bikes has no number for this
- Frame reach
- ±0 mm
- About the same reach
- Wheelbase
- +46 mm
- Longer: steadier at speed
- Head angle
- −1.0°
- Slacker: calmer steering
- Chainstays
- +18 mm
- Longer: more planted
The two frames
We can't draw these frames yet. The Trek Wahoo numbers we have for size 20" kids' are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Wahoo 20" kids' | Specialized Riprock 20 9 | Difference |
|---|---|---|---|
| Reach | 306 | 306mm | ±0 mm |
| Stack | 427 | not listed | |
| Head tube angle | 70.0° | 69° | −1.0° |
| Effective top tube | 445 | not listed | |
| Chainstay length | 372 | 390mm | +18 mm |
| Wheelbase | 864 | 909.5mm | +46 mm |
| BB drop | 15 | 37.5mm | +23 mm |
| BB height | 240 | 237mm | −3 mm |
| Standover | 518 | 528mm | +10 mm |
| Seat tube length | 255 | not listed | |
| Head tube length | 135 | 115mm | −20 mm |
| Seat tube angle | not listed | 73° |
Differences are the Specialized Riprock 20 minus the Trek Wahoo. Full charts: 2020 Trek Wahoo, 2021 Specialized Riprock 20.
Where each sits in its class
Trek WahooSpecialized Riprock 20
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 | Trek Wahoo20 | Specialized Riprock 20Riprock 20 |
|---|---|---|
| Frame | Trek Alpha | not listed |
| Fork | Trek Wahoo | SR Suntour XCT |
| Shifter | Shimano Acera M360 | Shimano Tourney |
| Derailleur | Shimano Acera M310 | Shimano Tourney TX800 |
| Cassette | Shimano HG-31 | not listed |
| Chain | KMC Z8.3 | KMC Z51 EPT |
| Pedals | Trek Kids' | not listed |
| Hub | Formula FM32 | not listed |
| Handlebar | Bontrager Approved | not listed |
| Seatpost | Bontrager Approved | not listed |
| Saddle | Trek Kids' | Specialized Kids' Henge |
| Tire | not listed | Specialized Big Roller |
| Grips | not listed | Specialized slip-on |
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