Specialized Tarmac SL8
Performance Road View 49 geometry on BikeInsightsStack 514mm · Reach 375mm
Performance Road98%TanTan
TanTan TT-X70 870g 32mm
| 49 → 490 | 98% | Compare |
= Stack, Reach, Head Tube Angle, Seat Tube Angle, Chainstay, Wheelbase, BB Drop, TT Slope
≈ Trail, Top Tube
$429
Endurance Road96%Spcycle
Spcycle R088 780g
| 49 → 49 | 96% | Compare |
= Stack, Reach, Head Tube Angle, Seat Tube Angle, Chainstay, Wheelbase, BB Drop, TT Slope
≈ Trail, Top Tube
€523
Endurance Road96%TanTan
TanTan TT-X68 878g 32mm
| 49 → 49 | 96% | Compare |
= Stack, Reach, Head Tube Angle, Seat Tube Angle, Chainstay, Wheelbase, BB Drop, TT Slope
≈ Trail, Top Tube
$609
Endurance Road91%Trifox
Trifox X16 QR - Rim 875g
| 49 → 49cm | 91% | Compare |
= Stack, Reach, Head Tube Angle, Seat Tube Angle, Chainstay, Wheelbase, Trail, BB Drop
≈ Top Tube, TT Slope
$559
Performance Road91%Bigrock
| 49 → XS 49 | 91% | Compare |
= Reach, Head Tube Angle, Seat Tube Angle, Chainstay, Wheelbase, BB Drop
≈ Stack, Trail, Top Tube, TT Slope
$1,089
Performance Road91%Bigrock
Bigrock Sohtea 730g
| 49 → XS 49 | 91% | Compare |
= Reach, Head Tube Angle, Seat Tube Angle, Chainstay, Wheelbase, BB Drop
≈ Stack, Trail, Top Tube, TT Slope
$1,199
Endurance Road91%ONIRII
| 49 → 47 | 91% | Compare |
= Stack, Reach, Seat Tube Angle, Chainstay, Wheelbase, BB Drop
≈ Head Tube Angle, Trail, Top Tube, TT Slope
$1,519
Performance Road90%Mondince
Mondince FM126 900g
| 49 → 49 | 90% | Compare |
= Stack, Reach, Head Tube Angle, Seat Tube Angle, Chainstay, Wheelbase, TT Slope
≈ Trail, BB Drop, Top Tube
$765
Performance Road89%Trifox
TRIFOX X16 (TA = Thru Axle) 971g 28mm
| 49 → 49cm | 89% | Compare |
= Stack, Reach, Head Tube Angle, Seat Tube Angle, Chainstay, BB Drop
≈ Wheelbase, Trail, Top Tube, TT Slope
$569
Performance Road89%Quick Pro
QUICK PRO UR:ONE 685g
| 49 → XS (446) | 89% | Compare |
= Stack, BB Drop
≈ Reach, Head Tube Angle, Seat Tube Angle, Chainstay, Wheelbase, Trail, Top Tube
$2,799
Performance Road
Performance Road77%BXT
BXT-SL-115 950g 32mm
| 49 → 49 | 77% | Compare |
= Head Tube Angle, Seat Tube Angle, Chainstay, BB Drop, Top Tube
≈ Stack, Reach, Wheelbase, Trail, TT Slope
$459
Performance Road75%Speeder Cycling
| 49 → 450 | 75% | Compare |
≈ Stack, Reach, Head Tube Angle, Seat Tube Angle, Chainstay, Wheelbase, Trail, BB Drop, Top Tube, TT Slope
Performance Road
Performance Road74%TFSA
TFSA JH-33 870g 28mm
| 49 → 49 | 74% | Compare |
= Head Tube Angle, Seat Tube Angle, BB Drop, Top Tube
≈ Stack, Reach, Chainstay, Wheelbase, Trail, TT Slope
$1,048
Performance Road74%Trifox
Trifox X18 838g
| 49 → 49 | 74% | Compare |
= Head Tube Angle, Seat Tube Angle, BB Drop, Top Tube
≈ Stack, Reach, Chainstay, Wheelbase, Trail, TT Slope
$549
Endurance Road72%VeloBuild
VeloBuild VB-R-268 950g 32mm
| 49 → XS 49 | 72% | Compare |
= Head Tube Angle, Seat Tube Angle, Chainstay, Wheelbase
≈ Stack, Reach, Trail, BB Drop, Top Tube, TT Slope
$499
Performance Road69%Winspace
Winspace M6 (Frameset) 1041g
| 49 → S | 69% | Compare |
= Chainstay
≈ Stack, Reach, Head Tube Angle, Seat Tube Angle, Wheelbase, Trail, BB Drop, Top Tube
$1,499
Performance Road66%Seka
SEKA Spear 685g
| 49 → S | 66% | Compare |
= Chainstay, Wheelbase, Trail, BB Drop
≈ Stack, Reach, Head Tube Angle, Seat Tube Angle, Top Tube, TT Slope
$2,201
Performance Road64%Long Teng
LT RD301-D 1350g 38mm
| 49 → 470 | 64% | Compare |
= Chainstay
≈ Stack, Reach, Head Tube Angle, Seat Tube Angle, Wheelbase, Trail, BB Drop, Top Tube, TT Slope
Performance Road64%TanTan
TanTan TT-X34 1252g 30mm
| 49 → XS / 50 | 64% | Compare |
= Chainstay, Wheelbase, TT Slope
≈ Stack, Reach, Head Tube Angle, Seat Tube Angle, Trail, BB Drop, Top Tube
$499
Performance Road64%BXT
BXT 145 PRO Road 950g 32mm
| 49 → 47 | 64% | Compare |
= Chainstay
≈ Stack, Reach, Head Tube Angle, Seat Tube Angle, Wheelbase, Trail, BB Drop, Top Tube, TT Slope
€561
Performance Road62%Winspace
Winspace T1600 1089g 32mm
| 49 → 470 | 62% | Compare |
≈ Stack, Reach, Head Tube Angle, Seat Tube Angle, Chainstay, Wheelbase, Trail, BB Drop, Top Tube
$2,100
Performance Road61%Winspace
Winspace SLC5.0 852g
| 49 → S | 61% | Compare |
≈ Stack, Reach, Head Tube Angle, Seat Tube Angle, Chainstay, Wheelbase, Trail, BB Drop, TT Slope
$2,800
FAQ — Specialized Tarmac SL8 (49)
What are cheap alternatives to the Specialized Tarmac SL8 (49)?
These Chinese-made carbon frames offer similar geometry to the Specialized Tarmac SL8 (49) at a fraction of the price:
- TanTan TT-X70 (98% geometry match)
- Spcycle R088 (96% geometry match)
- TanTan TT-X68 (96% geometry match)
- Trifox X16 QR - Rim (91% geometry match)
- Bigrock Sohtea TEAM EDITION (91% geometry match)
What frames have the most similar geometry to the Specialized Tarmac SL8 (49)?
The TanTan TT-X70 is the closest match to the Specialized Tarmac SL8 (49) with a 98% geometry similarity score, based on stack, reach, head tube angle, seat tube angle, chainstay length, and wheelbase.
How aggressive or comfortable is the Specialized Tarmac SL8 (49)?
The Specialized Tarmac SL8 (49) has a stack-to-reach ratio of 1.37, which is aggressive. This is a race-oriented position that balances aerodynamics with reasonable comfort for long efforts. Typical for high-performance road and aero frames.
What type of bike is the Specialized Tarmac SL8 (49)?
The Specialized Tarmac SL8 (49) is classified as a Performance Road bike with a stack-to-reach ratio of 1.37. Its riding character is aggressive — performance-focused with a race-ready position. The geometry determines how the bike handles and how the rider is positioned — frames with similar numbers will feel similar on the road, regardless of brand.