70mm V Type cantilever brake block - threaded type. Buying from someone without this is like throwing your money away if there is a problem with your products at a later date. Cycles come 90% assembled unless stated otherwise.
If any work has been done on the bike by yourself or a third party to try to rectify a warranty problem then this will invalidate your warranty. (Irleand is £30.00). the right to change and update the product without notice.