2014 Specialized Roubaix SL4 Sport SRAM Disc vs 2016 Kona Private Jake
The XL is the Kona Private Jake size closest to your 610.0 Specialized Roubaix SL4 Sport SRAM Disc. 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 Kona Private Jake
Compared with the Specialized Roubaix SL4 Sport SRAM Disc in 610.0, the Kona Private Jake in XL places the top of the head tube 24 mm lower and about as far forward, relative to the bottom bracket. Its wheelbase is 7 mm longer, which can contribute to stability at speed.
- Frame stack
- −24 mm
- Lower front end
- Frame reach
- +2 mm
- About the same reach
- Wheelbase
- +7 mm
- Longer: steadier at speed
- Head angle
- −1.5°
- Slacker: calmer steering
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized Roubaix SL4 Sport SRAM Disc, 610.0Kona Private Jake, XLDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Roubaix SL4 Sport SRAM Disc 610.0 | Kona Private Jake XL | Difference |
|---|---|---|---|
| Reach | 398mm | 400 | +2 mm |
| Stack | 643mm | 619 | −24 mm |
| Head tube angle | 73° | 71.5 | −1.5° |
| Seat tube angle | 72.5° | 72.5 | ±0.0° |
| Chainstay length | 420mm | 420 | ±0 mm |
| Wheelbase | 1039mm | 1046 | +7 mm |
| Standover | 851mm | 845 | −6 mm |
| Seat tube length | 565mm | 590 | +25 mm |
| Head tube length | 245mm | 200 | −45 mm |
| Effective top tube | not listed | 595 | |
| BB drop | not listed | 67.5 | |
| Fork length | not listed | 395 |
Differences are the Kona Private Jake minus the Specialized Roubaix SL4 Sport SRAM Disc. Full charts: 2014 Specialized Roubaix SL4 Sport SRAM Disc, 2016 Kona Private Jake.
Where each sits in its class
Specialized Roubaix SL4 Sport SRAM 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 Sport SRAM DiscSL4 Sport SRAM Disc | Kona Private JakePrivate Jake |
|---|---|---|
| Frame | Specialized SL4 FACT | Kona Race Light 7005 Aluminum Butted |
| Fork | Specialized Roubaix FACT | Kona Full Carbon CX Race Disc |
| Derailleur | SRAM Apex | SRAM Rival One |
| Cassette | SRAM PG-1030 | SRAM Rival 11-32t 11spd |
| Chain | SRAM 1031 | 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 |
| Stem | Specialized Comp-Set | not listed |
| Saddle | Specialized Romin | WTB SL8 |
| Shifter | not listed | SRAM Rival One |
| Brake | not listed | Tektro Spyre |
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