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CeramicSpeed BB ALPHA T47a Shimano Road Bottom Bracket, Ceramic Bearings for 24 mm Cranks, Lifetime Warranty
1,818
SKU: 5711050143191
AVAILABILITY: In stock (6 items)
PRODUCT INFORMATION
The CeramicSpeed BB ALPHA for T47a Shimano Road is a ceramic bottom bracket built to outlast your frame. Grade-3 silicon nitride ceramic balls run in hardened stainless steel races for very low friction, and custom seals with stainless-backed covers give up to 500% better moisture protection, useful when sweat, dust and the odd wash-down get at your bike.
This version fits threaded T47 asymmetric frames that are 77 mm wide, with a 24 mm axle crank from Shimano or other brands. Lighter cups and a simplified spacer tube make installation quicker, and every BB ALPHA carries CeramicSpeed's lifetime warranty.
Features
| Feature | What it does for you |
|---|---|
| Hardened stainless races | Corrosion resistant races hand-built with grade-3 silicon nitride ceramic balls. |
| Custom seals | Light contact seals with up to 500% better moisture protection, per CeramicSpeed. |
| Low friction | Signature CeramicSpeed low drag every pedal stroke. |
| Lighter cups | Simplified spacer tube and cups, about 10% lighter than the previous generation. |
| Lifetime warranty | Every BB ALPHA is covered by CeramicSpeed's lifetime warranty. |
Specification
| Shell standard | Threaded T47 asymmetric, 77 mm wide |
|---|---|
| Crank axle | 24 mm (Shimano and others) |
| Bearings | Grade-3 silicon nitride balls, hardened stainless races |
| Weight | 222 g (CeramicSpeed listed) |
| Warranty | Lifetime (CeramicSpeed) |
| In the box | BB ALPHA, UFO TECH All Round bearing grease 5 ml, decal |
| Shipping and package | |
|---|---|
| Package size (L x W x H) | 12 x 10 x 6 cm |
| Shipping weight | 0.3 kg |
CUSTOMER REVIEWS
Frequently Asked Questions
Will it fit my frame and crank? ▼
It fits threaded T47 asymmetric frames that are 77 mm wide, with 24 mm axle cranks from Shimano and others. Check your frame's bottom bracket standard and crank axle before ordering.
Is it hard to install? ▼
It uses standard bottom bracket tools. The simplified spacer tube and cups make fitting quicker than earlier CeramicSpeed models; have a bike shop fit it if you are unsure.
What warranty does it have? ▼
CeramicSpeed covers all BB ALPHA models with a lifetime warranty.
