UNSEALED BOTTOM BRACKET.
One piece unsealed bottom bracket with small cup set. Suitable for bikes with small one-piece cranks.
1 PC SEALED BOTTOM BRACKET.
One piece sealed bottom bracket cup set. 5/16" x 9mm.
At Chain Reaction, we aim to deliver your order as quickly as possible.
- Free Shipping on Gear: Orders over $129 (excludes Bikes & Bulky items)
- Delivery Times:
In-Store Items: Arrive in 2–3 business days (extra 2 days for rural).
Supplier-Only Items: May take up to 7 business days, depending on the supplier. - Selected Bikes:
Nationwide shipping for select bikes: $60 or free pick-up from our Christchurch store.
Shipped bikes require some assembly. Picked-up bikes are fully built and ready to ride. - Click & Collect: Available for most products. Collect at 4/218 Moorhouse Ave, Christchurch.
- Dangerous Goods: Items like batteries and aerosols may incur additional fees due to safety regulations.
- Returns: Changed your mind? Return unused items in original packaging within 14 days for a refund (shipping costs excluded).
For full details, visit our Shipping Page.
