Specialized Tarmac SL6 Disc Sport
A race-focused road bike from 2020, made in 7 sizes from 44cm to 61cm.
Size
Stack 544 mmReach 384 mm
Geometry
| Size | |||||||
|---|---|---|---|---|---|---|---|
| Fit | |||||||
| Stack (mm)How high the front sits | 500 | 514 | 527 | 544 | 565 | 591 | 612 |
| Reach (mm)How far forward the bars start | 365 | 375 | 380 | 384 | 395 | 402 | 408 |
| Stack ÷ reach Higher = more upright | 1.37 | 1.37 | 1.39 | 1.42 | 1.43 | 1.47 | 1.50 |
| Top tube (effective) (mm)Horizontal top-tube length | 493 | 511 | 535 | 544 | 566 | 581 | 599 |
| Seat tube angle Saddle position over the pedals | 76° | 75.5° | 74° | 74° | 73.5° | 73.5° | 73° |
| Seat tube length (mm)Frame size reference | 435 | 451 | 481 | 499 | 519 | 540 | 570 |
| Head tube length (mm)Front-end height | 105 | 115 | 126 | 143 | 163 | 190 | 210 |
| Standover (mm)Clearance when you stop | 730 | 740 | 755 | 775 | 795 | 826 | 850 |
| Handling | |||||||
| Head tube angle Steeper = quicker steering | 70.5° | 71.8° | 72.5° | 73° | 73.5° | 73.5° | 74° |
| Fork offset (mm)Fork rake | 47 | 47 | 47 | 44 | 44 | 44 | 44 |
| Trail (mm)More = steadier steering | 71 | 63 | 58 | 58 | 55 | 55 | 52 |
| Wheelbase (mm)Longer = more stable | 969 | 973 | 975 | 978 | 990 | 1005 | 1012 |
| Chainstay (mm)Shorter = snappier | 410 | 410 | 410 | 410 | 410 | 410 | 410 |
| BB drop (mm)More = lower centre of gravity | 74 | 74 | 74 | 72 | 72 | 72 | 72 |
| BB height (mm)Pedal clearance in corners | 262 | 262 | 262 | 264 | 264 | 264 | 264 |
| Front centre (mm)Room for your toes | 571 | 574 | 577 | 579 | 591 | 606 | 613 |
Underlined values are calculated by BikeLens. A dash means the brand doesn't publish it.
How it rides
Race-focused
A low, stretched position built for speed. Suits flexible riders who like to ride fast.
Handling, size 54cm
- Steering
- Neutral58 mm trail
- Wheelbase
- Agile978 mm
- Chainstays
- Balanced410 mm
- BB drop
- Typical72 mm
Bikes that fit like it
The closest road frames from other ranges, against size 54cm here.
| Bike | Size | Stack | Reach |
|---|---|---|---|
| Cervelo R52026Stack +1 mm, reach −1 mm | 54 | +1 mm | −1 mm |
| Cervelo S52026Stack −2 mm, reach same | 54 | −2 mm | same |
| Trek Madone SL 5 Gen 82027Stack +2 mm, reach same | MD | +2 mm | same |
| Trek Émonda SL 52024Stack −3 mm, reach +2 mm | 54 | −3 mm | +2 mm |
| Giant Propel Advanced 12026Stack +1 mm, reach +4 mm | M | +1 mm | +4 mm |
| Giant TCR Advanced SL 0 DA2025Stack +1 mm, reach +4 mm | M | +1 mm | +4 mm |
Other versions
Same frame, different parts
These builds share this exact geometry, so they fit the same.