2016 Trek Precaliber Boy's vs 2018 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
- +37 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 Precaliber Boy's numbers we have for size 20" are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Precaliber Boy's 20" | Specialized Riprock 20 9 | Difference |
|---|---|---|---|
| Reach | 306 | 306mm | ±0 mm |
| Stack | 429 | not listed | |
| Head tube angle | 70.0° | 69° | −1.0° |
| Effective top tube | 445 | 465mm | +20 mm |
| Chainstay length | 372 | 390mm | +18 mm |
| Wheelbase | 873 | 909.5mm | +37 mm |
| BB drop | 15 | 37.5mm | +23 mm |
| Standover | 469 | 528mm | +59 mm |
| Seat tube length | 255 | not listed | |
| Head tube length | 105 | 115mm | +10 mm |
| Seat tube angle | not listed | 73° | |
| BB height | not listed | 237mm |
Differences are the Specialized Riprock 20 minus the Trek Precaliber Boy's. Full charts: 2016 Trek Precaliber Boy's, 2018 Specialized Riprock 20.
Where each sits in its class
Trek Precaliber Boy'sSpecialized Riprock 20
AggressivePositionUpright
CalmSteeringQuick
PlayfulBalancePlanted
Each bike is ranked against the other kids 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 Precaliber Boy's20 6-Speed Boy's | Specialized Riprock 20Riprock 20 |
|---|---|---|
| Frame | Trek Dialed | not listed |
| Shifter | Shimano Tourney RS35 | Shimano Tourney |
| Derailleur | Shimano Tourney TY300 | Shimano Tourney TX |
| Cassette | Trek SunRun | not listed |
| Tire | Bontrager XR1 | Specialized Big Roller |
| Fork | not listed | SR Suntour XCT |
| Chain | not listed | KMC Z51 |
| Grips | not listed | Specialized slip-on |
| Saddle | not listed | Specialized Henge |
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