Profi K-CAT 428 Laser Gear Alignment

For aligning the rear sprocket against the front sprocket by means of laser.
This creates less friction and the gears will have a longer life.
Made for 428 rear sprockets.

Includes batteries (2x LR44 standard button cells), Nylon storage bag, 3 years warranty.



Technical data:

Laser: 650nm, class 2, < 1mW.

Operating voltage: 3 volts.

life of laser: > 10,000 hours.

Maximum tolerance: <0.05%