Token Ninja BB4129SR BB86 / BB89.5 / BB92 Bottom Bracket
- In stock On the shelf in our own warehouse. Order before 2pm and it is despatched the same working day; bikes we build are built, safety-checked and despatched in 2-3 working days.
- In stock with our supplier Not on our shelves, but our supplier has it or it is already on its way to us. We bring it in as soon as you order, and the despatch estimate shown allows for that.
- Out of stock Neither we nor our supplier has it right now. Where a date is shown, more is on order and you can order now to secure one from that delivery.
- Stock to be confirmed Not on our shelves, and our supplier does not send us stock figures for it, so we cannot say how soon we could get one. Use "Check availability" and we will ask them and email you back.
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Attributes
| Colour | Black |
|---|
About Token
A reputable Road & MTB aftermarket parts specialist. Everything Token produce is crafted using the highest quality materials available and then tested to extremes to ensure that once installed, you instantly notice the difference in performance.
Details
The BB4129SR is a lightweight and durable press fit bottom bracket designed for BB86 / BB89.5 / BB92 frames (Diameter 41mm) and SRAM DUB cranksets (28.99mm spindle). It features Premium bearings, a waterproof plastic centre sleeve, and Token’s patented Fusion Construction to reduce creaking and improve frame fit.
Enhanced with X-Seal technology, this bottom bracket offers excellent protection against water and dirt while maintaining low friction. At just 68 grams, it’s a reliable upgrade for riders seeking smooth, quiet, and long-lasting performance.
Technology
Premium Bearings
Premium Bearings are Token's high carbon steel bearings.
X-Seal
Token’s X-Seal technology keeps bearings protected from dirt and water, with very little friction for a free-spinning bearing.
Specification
- Type: Press Fit
- Frame Type: BB86 / BB89.5 / BB92 (Dia. 41mm x 86.5 / 89.5 / 92)
- Crank Type: SRAM DUB (Dia. 28.99)
- Bearing Type: Premium
- Colours: Black
- Weight: 68g (Set)
- Product Code: BB4129SR
- Bearing Size: Dia. 41mm x 29mm x H18mm

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