Hi i have a dawes giro 300 road bike with tectro ? cantilever brakes. Basically i have broken the black plastic locking clip and i was wondering were i would be able to buy a spare part in the london area not a whole new brake set. It is still covered under warranty but i am in London and the shop i bought it is in Wiltshire. Unfourtently i have to ride back to Wiltshire next sunday and would rather not have to do it with one brake. Ive tried ringing Dawes but its going to take to long to get it sorted as i haven't got a digital camera to prove it is broken. Does anybody know were i may be able to get hold of this part in a short space of time? It is only a silly plastic clip so i am hopeing it will not be very expensive.