2016 Specialized Turbo S vs 2018 Trek Dual Sport+
The L is the Trek Dual Sport+ size closest to your L Specialized Turbo S. 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 Trek Dual Sport+
Compared with the Specialized Turbo S in L, the Trek Dual Sport+ in L places the top of the head tube 11 mm lower and 16 mm further forward, relative to the bottom bracket. Its wheelbase is 27 mm longer, which can contribute to stability at speed.
- Frame stack
- −11 mm
- Lower front end
- Frame reach
- +16 mm
- Longer frame reach
- Wheelbase
- +27 mm
- Longer: steadier at speed
- Head angle
- ±0.0°
- About the same head angle
- Chainstays
- +10 mm
- Longer: more planted
The two frames
Only the Specialized Turbo S is drawn. The Trek Dual Sport+ numbers we have for size L are missing the seat angle.
Geometry side by side
| Measurement | Specialized Turbo S L | Trek Dual Sport+ L | Difference |
|---|---|---|---|
| Reach | 405 | 421 | +16 mm |
| Stack | 630 | 619 | −11 mm |
| Head tube angle | 71 | 71.0° | ±0.0° |
| Seat tube angle | 72 | not listed | |
| Effective top tube | 610 | 605 | −5 mm |
| Chainstay length | 455 | 465 | +10 mm |
| Wheelbase | 1093 | 1120 | +27 mm |
| BB drop | 70 | 66 | −4 mm |
| BB height | 289.5 | 288 | −2 mm |
| Standover | 827 | 772 | −55 mm |
| Seat tube length | 500 | 483 | −17 mm |
| Fork length | 402 | not listed | |
| Head tube length | 204 | 134 | −70 mm |
Differences are the Trek Dual Sport+ minus the Specialized Turbo S. Full charts: 2016 Specialized Turbo S, 2018 Trek Dual Sport+.
Where each sits in its class
Specialized Turbo STrek Dual Sport+
Each bike is ranked against the other commuter 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 Turbo STurbo S | Trek Dual Sport+Dual Sport+ |
|---|---|---|
| Frame | Specialized Turbo | Trek Alpha Gold |
| Shifter | Shimano XT | Shimano Deore |
| Derailleur | Shimano XT Shadow Plus | Shimano Deore |
| Cassette | Shimano XT | Shimano HG50 |
| Chain | KMC X-11 | KMC x10e |
| Crankset | Specialized Stout | not listed |
| Bottom bracket | FSA MegaExo | not listed |
| Pedals | Specialized Bennies | not listed |
| Motor | Specialized Turbo SC | not listed |
| Battery | Specialized Turbo integrated | not listed |
| Wheelset | Specialized Alloy Double-Wall | Formula DC-20 |
| Tire | Specialized Nimbus Armadillo | Bontrager LT2 |
| Rim | Alloy Double-Wall | not listed |
| Brake | Shimano XT | Shimano Acera M315 |
| Rotor | Shimano XT | not listed |
| Handlebar | Specialized Flat Top | not listed |
| Stem | crankbrothers Cobalt 2 | not listed |
| Grips | Specialized XCT | not listed |
| Headset | Campagnolo Cartridge Bearing | not listed |
| Seatpost | Specialized Alloy | not listed |
| Saddle | Specialized Targa Comp | Bontrager H1 |
| Light | Supernova E3 LED, Specialized Saddle LED | not listed |
| Fork | not listed | SR Suntour NRX |
| Hub | not listed | Formula DC20, Formula DC22 |
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