Birzman's Clam Disc Alignment Tool is an ingenious bit of kit that allows you to perfectly align your disc brake calipers to your rotors every time. Made of stainless steel, you simply slide the Clam onto the rotor, spin the wheel so the clam aligns with the caliper, pull the brake lever and tighten the caliper bolts and there you have it; a perfectly aligned disc and caliper! 3 Clams are included to suit a range of caliper shapes.
Best Price: £7.00 from Tweeks Cycles