Derailleur Chain Tensioner with Square Spring

Get free ground shipping on all orders over $125, sent by our trusted courier partner in 3-5 working days. Easy set up. Follow the Quick Start Guide to add your saddle and do some basic checks, and you’ll be ready to cycle away in less than 10 minutes from opening the box.

Brompton is committed to quality; if our products have failed you in any way, please return them and we will either exchange them or give you your money back. If the product is faulty or has arrived damaged, we will reimburse the cost of return postage. Unwanted items may be returned* within 28 days at your cost.

*Brompton Renewed sales are final and non-returnable.