PRACTI CAL SCOOT ERING TECH TIPSPart one
When Innocenti introduced the Series 3 TV175 it marked a major step forward for the entire two-wheeled industry. The first production ‘motorcycle’ to be made available with a front disc brake, it was a design masterclass and the efforts made to fit such a complicated mechanism into such a compact space should not be underestimated. Unfortunately, Innocenti’s desire to create a fully enclosed mechanism led to design compromises. Gaining access to the mechanism and ensuring it was correctly maintained wasn’t easy. Also, being cable-operated meant that keeping full pressure on the actuator wasn’t possible without constant adjustment. Correctly looked after, they performed well, but if neglected, they quickly become inefficient.
How it works
The most common form of a motorcycle disc brake is the fixed caliper type, with hydraulically operated pistons that simultaneously push friction pads on to either side of the disc, effectively gripping it. On the Lambretta disc, a cable moves the actuator arm, which has a floating pad that makes
