2015 Specialized Roubaix SL4 Elite Disc vs 2016 Kona Private Jake
The Kona Private Jake size closest to your 54 is the M. Compare the M instead
What changes on the Kona Private Jake
Compared with the Specialized Roubaix SL4 Elite Disc in 54, the Kona Private Jake in S places the top of the head tube 26 mm lower and 9 mm further back, relative to the bottom bracket.
- Frame stack
- −26 mm
- Lower front end
- Frame reach
- −9 mm
- Shorter frame reach
- Wheelbase
- −2 mm
- About the same
- Head angle
- −1.5°
- Slacker: calmer steering
- Chainstays
- +5 mm
- Longer: more planted
The two frames
Specialized Roubaix SL4 Elite Disc, 54Kona Private Jake, SDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Roubaix SL4 Elite Disc 54 | Kona Private Jake S | Difference |
|---|---|---|---|
| Reach | 380mm | 371 | −9 mm |
| Stack | 563mm | 537 | −26 mm |
| Head tube angle | 72° | 70.5 | −1.5° |
| Seat tube angle | 73.5° | 75 | +1.5° |
| Effective top tube | 548mm | 515 | −33 mm |
| Chainstay length | 415mm | 420 | +5 mm |
| Wheelbase | 1000mm | 998 | −2 mm |
| BB drop | 71.5mm | 70 | −2 mm |
| Standover | 776mm | 740 | −36 mm |
| Seat tube length | 495mm | 480 | −15 mm |
| Head tube length | 165mm | 115 | −50 mm |
| Fork length | not listed | 395 |
Differences are the Kona Private Jake minus the Specialized Roubaix SL4 Elite Disc. Full charts: 2015 Specialized Roubaix SL4 Elite Disc, 2016 Kona Private Jake.
Where each sits in its class
Specialized Roubaix SL4 Elite DiscKona Private Jake
Each bike is ranked against the other road 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 | Specialized Roubaix SL4 Elite DiscSL4 Elite Disc | Kona Private JakePrivate Jake |
|---|---|---|
| Frame | Specialized SL4 FACT | Kona Race Light 7005 Aluminum Butted |
| Shifter | SRAM Rival | SRAM Rival One |
| Derailleur | SRAM Rival 22 | SRAM Rival One |
| Cassette | SRAM PG-1130 | SRAM Rival 11-32t 11spd |
| Chain | SRAM 1130 | KMC X11 |
| Crankset | FSA Gossamer | SRAM Rival One PF30 |
| Wheelset | Specialized AXIS 2.0 | Novatec 30 Disc |
| Tire | Specialized Espoir Elite | WTB Cross Boss 700x35c |
| Brake | SRAM Rival | Tektro Spyre |
| Seatpost | Specialized CG-R | not listed |
| Saddle | Specialized Toupe Comp | WTB SL8 |
| Fork | not listed | Kona Full Carbon CX Race Disc |
Know what is on every bike.
Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.
Explore the app
