Bottom bracket
Shimano Ultegra BBR60 BSA 68mm Bottom Bracket
✓ Fits BSA 68mm Threaded
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Road 2025
Specialized Tarmac SL8 Comp 105 Di2 (2025): parts that fit
The 2025 Specialized Tarmac SL8 Comp 105 Di2 is a road bike with a BSA 68mm Threaded bottom bracket, a Shimano HG 8/9/10/11-Speed / Shimano HG 12-Speed Road freehub, 12x142mm Thru-Axle rear, 12x100mm Thru-Axle front and Flat Mount Disc brake mounts.
Standards
- Bottom bracket
- BSA 68mm Threaded
- Freehub / cassette body
- Shimano HG 8/9/10/11-Speed / Shimano HG 12-Speed Road
- Drivetrain
- 12-speed drivetrain
- Rear axle
- 12x142mm Thru-Axle
- Front axle
- 12x100mm Thru-Axle
- Brake mount
- Flat Mount Disc
19 compatible parts
Bottom bracket
Bottom bracket
Shimano XT BB-MT800 BSA Bottom Bracket
✓ Fits BSA 68mm Threaded
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Bottom bracket
SRAM DUB BSA 68/73mm Threaded Bottom Bracket
✓ Fits BSA 68mm Threaded
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Bottom bracket
SRAM DUB BSA Threaded Bottom Bracket
✓ Fits BSA 68mm Threaded
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Brake pads
Brake pads
Shimano K05S-RX Resin Disc Brake Pads
✓ Fits Flat Mount Disc
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Brake pads
Shimano K05S-RX Resin Flat Mount Disc Brake Pads
✓ Fits Flat Mount Disc
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Brake pads
SRAM HRD/Level/Rival Disc Brake Pads
✓ Fits Flat Mount Disc
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Brake pads
Shimano L05A Resin Disc Brake Pads
✓ Fits Flat Mount Disc
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Brake pads
SRAM Road HRD Organic Disc Brake Pads
✓ Fits Flat Mount Disc
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Cassette
Cassette
SRAM NX Eagle PG-1230 12-Speed Cassette 11-50T
✓ Fits Shimano HG 8/9/10/11-Speed · 12-speed drivetrain
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Cassette
Shimano Ultegra CS-R8100 12-Speed Cassette 11-30T
✓ Fits Shimano HG 12-Speed Road · 12-speed drivetrain
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Chain
Chain
SRAM NX Eagle 12-Speed Chain
✓ Fits 12-speed drivetrain
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Chain
Shimano Deore CN-M6100 12-Speed Chain
✓ Fits 12-speed drivetrain
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Chain
Shimano SLX CN-M7100 12-Speed Chain
✓ Fits 12-speed drivetrain
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Chain
SRAM Rival D1 12-Speed Chain
✓ Fits 12-speed drivetrain
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Chain
SRAM Rival Flattop 12-Speed Chain
✓ Fits 12-speed drivetrain
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Complete groupsets
Complete groupsets
SRAM Apex AXS XPLR groupset — 1x12 wireless, PG-1231 11-44 (HG)
✓ Fits Flat Mount Disc · Shimano HG 8/9/10/11-Speed
Fits your brake mounts and wheel. Before ordering, check your frame has a front-derailleur mount (2x kits) and the right cable routing (mechanical / Di2).
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Complete groupsets
Shimano GRX RX820 groupset — 2x12 mechanical, hydraulic disc (flat mount)
✓ Fits Flat Mount Disc · Shimano HG 8/9/10/11-Speed · Shimano HG 12-Speed Road
Fits your brake mounts and wheel. Before ordering, check your frame has a front-derailleur mount (2x kits) and the right cable routing (mechanical / Di2).
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Complete groupsets
Shimano 105 R7100 groupset — 2x12 mechanical, hydraulic disc (flat mount)
✓ Fits Flat Mount Disc · Shimano HG 8/9/10/11-Speed · Shimano HG 12-Speed Road
Fits your brake mounts and wheel. Before ordering, check your frame has a front-derailleur mount (2x kits) and the right cable routing (mechanical / Di2).
Buy it on
Questions about the Specialized Tarmac SL8 Comp 105 Di2 (2025)
What bottom bracket does the Specialized Tarmac SL8 Comp 105 Di2 (2025) use?
The Specialized Tarmac SL8 Comp 105 Di2 (2025) uses BSA 68mm Threaded. Parts in our database that fit: Shimano Ultegra BBR60 BSA 68mm Bottom Bracket, Shimano XT BB-MT800 BSA Bottom Bracket, SRAM DUB BSA 68/73mm Threaded Bottom Bracket, SRAM DUB BSA Threaded Bottom Bracket.
Which cassettes fit the Specialized Tarmac SL8 Comp 105 Di2 (2025)?
The Specialized Tarmac SL8 Comp 105 Di2 (2025) uses Shimano HG 8/9/10/11-Speed / Shimano HG 12-Speed Road. Parts in our database that fit: SRAM NX Eagle PG-1230 12-Speed Cassette 11-50T, Shimano Ultegra CS-R8100 12-Speed Cassette 11-30T.
What rear axle does the Specialized Tarmac SL8 Comp 105 Di2 (2025) have?
The Specialized Tarmac SL8 Comp 105 Di2 (2025) uses 12x142mm Thru-Axle.
Which brake pads and calipers fit the Specialized Tarmac SL8 Comp 105 Di2 (2025)?
The Specialized Tarmac SL8 Comp 105 Di2 (2025) uses Flat Mount Disc. Parts in our database that fit: Shimano K05S-RX Resin Disc Brake Pads, Shimano K05S-RX Resin Flat Mount Disc Brake Pads, SRAM HRD/Level/Rival Disc Brake Pads, Shimano L05A Resin Disc Brake Pads, SRAM Road HRD Organic Disc Brake Pads.