Incorrect or missing product information? Let us know
Please select the issue
Your feedback has been received! Thank you for helping us improve our site.
This Box Four rear mech is the base of Prime 9 Technology, which offers an affordable clutch based 1 by 8 speed derailleur that is simple and light. This makes it an ideal candidate for every entry-level bike that traditionally has a 3 by drive-train that is neither durable nor user friendly.
• Box Four 8 Speed Shifter Black
• Box Four 8 Speed 116 Link Chain Natural
• Box Four 8 Speed 11-42T Cassette Black
• Box Four 8 speed Wide/Narrow Chainring 104BCD 32T Black
Are Box Prime 9 derailleurs compatible with Shimano "direct mount" hangers? No, Shimano direct mount hangers are proprietary and are not compatible with Box derailleurs.
Is the Box Four Prime 9 Derailleur compatible with other 8 speed components? No, traditional 8 speed systems use a Cable Pull that is not compatible with Prime 9.
Are Box Prime 9 derailleurs compatible with drop bar (road) shifters? No, Box Prime 9 derailleurs are not currently compatible with drop bar shifters, but we do offer a clamp for our shifters to mount on some 31.8mm drop handle bars.
How should I clean my Box Four Prime 9 derailleur? We suggest removing the derailleur from the bike and using a soft bristle brush or rag with soapy water or a mild de-greaser. We do not recommend pressure washing, strong solvents or de-greasers as they could degrade the surface coating.
The delivery options available for shipping this product along with the contents of your basket to USA are:
We will happily refund any item purchased on Wiggle if returned to us within 365 days; excluding Wiggle gift vouchers, nutrition and customised products, except when faulty.
Please note: Bikes and other bulky items cannot be returned using our local returns service (where applicable). Please contact us and we can arrange to collect these from you using our discounted courier rates. There is a fee for all collections, except for faulty products.Returned goods must be unused and supplied with their original packaging, unless the goods are faulty. Wiggle will pay the return postage costs for any faulty items.