Shimano Dura-Ace BSA Threaded Bottom Bracket | BB-R9100

Shimano Dura-Ace BSA Threaded Bottom Bracket

Dura-Ace threaded HOLLOWTECH II bottom bracket with small ball bearings and advanced seals

🔥 Smooth rotation at just 65 g, in 68 mm or 70 mm shell widths 🔥

🚲 Threaded (BSA) bottom bracket for 68 mm or 70 mm shell widths

🚲 Advanced seal construction for smoother rotation

🚲 Small ball bearings to minimise weight

🚲 Weight: 65 g

More Information

The BB-R9100 is the threaded version of the Shimano Dura-Ace bottom bracket. An advanced seal construction gives smoother rotation, and small ball bearings keep the weight down. Dura-Ace offers the same bottom bracket in both press-fit and threaded versions.

Compatibility

For Shimano HOLLOWTECH II cranksets, including Dura-Ace R9100 and the 12-speed R9200 FC-R9200. Choose the shell width that matches your frame's bottom bracket shell. If your frame is press-fit, you need the Dura-Ace press-fit bottom bracket (SM-BB92-41B) instead. WhatsApp us if you are unsure.

Available Options

✔ 68mm – for frames with a 68 mm bottom bracket shell width

✔ 70mm – for frames with a 70 mm bottom bracket shell width

Specifications

✔ Model: BB-R9100

✔ Series: Dura-Ace R9100

✔ Type: Threaded (BSA)

✔ Shell width: 68 mm, 70 mm

✔ Weight: 65 g

✔ HOLLOWTECH II: Yes

✔ Bearings: Small ball bearings

Kindly note: stock availability shown online may not be up to date. Please WhatsApp us to confirm before ordering.