2021 Specialized Tarmac SL7 vs 2019 Specialized Tarmac Women's Disc
The 52 is the Specialized Tarmac Women's Disc size closest to your 54 Specialized Tarmac SL7. 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 Specialized Tarmac Women's Disc
Compared with the Specialized Tarmac SL7 in 54, the Specialized Tarmac Women's Disc in 52 places the top of the head tube 7 mm lower and 7 mm further back, relative to the bottom bracket. Its wheelbase is 3 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −7 mm
- Lower front end
- Frame reach
- −7 mm
- Shorter frame reach
- Wheelbase
- −3 mm
- Shorter: quicker to change direction
- Head angle
- −0.5°
- Slacker: calmer steering
- Chainstays
- ±0 mm
- About the same
The two frames
Specialized Tarmac SL7, 54Specialized Tarmac Women's Disc, 52Drawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Tarmac SL7 54 | Specialized Tarmac Women's Disc 52 | Difference |
|---|---|---|---|
| Reach | 387 | 380mm | −7 mm |
| Stack | 534 | 527mm | −7 mm |
| Head tube angle | 73° | 72.5° | −0.5° |
| Seat tube angle | 74° | 74° | ±0.0° |
| Chainstay length | 410mm | 410mm | ±0 mm |
| Wheelbase | 978mm | 975mm | −3 mm |
| BB drop | 72mm | 74mm | +2 mm |
| BB height | 268mm | 266mm | −2 mm |
| Standover | 768mm | 755mm | −13 mm |
| Seat tube length | 475mm | 462mm | −13 mm |
| Fork length | 366mm | 363mm | −3 mm |
| Head tube length | 131mm | 126mm | −5 mm |
| Effective top tube | not listed | 531mm |
Differences are the Specialized Tarmac Women's Disc minus the Specialized Tarmac SL7. Full charts: 2021 Specialized Tarmac SL7, 2019 Specialized Tarmac Women's Disc.
Where each sits in its class
Specialized Tarmac SL7Specialized Tarmac Women's Disc
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 Tarmac SL7 | Specialized Tarmac Women's DiscWomen's S-Works Disc |
|---|---|---|
| Shifter | not listed | Shimano Dura-Ace Di2 |
| Derailleur | not listed | Shimano Dura-Ace R9150 Di2 |
| Cassette | not listed | Shimano Dura-Ace R9100 |
| Chain | not listed | Shimano Dura-Ace |
| Crankset | not listed | Specialized S-Works Power |
| Wheelset | not listed | Roval CLX 50 |
| Tire | not listed | Specialized Turbo Cotton |
| Brake | not listed | Shimano Dura-Ace R9170 |
| Saddle | not listed | Specialized Oura Pro |
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