KTM RC 125 User Manual

12 SERVICE WORK ON THE CHASSIS 89
12.13 Adjusting the chain tension
Warning
Danger of accidents Danger caused by incorrect chain tension.
– If the chain is too taut, the components of the secondary power transmission (chain, engine sprocket, rear sprocket, bearings in
the transmission and in the rear wheel) will be under additional load. In addition to premature wear, this can cause the chain
or the countershaft of the transmission to break in extreme cases. If the chain is too loose, however, it may fall off the engine
sprocket or rear sprocket and block the rear wheel or damage the engine. Ensure that the chain tension is correct and adjust it
if necessary.
Preparatory work
– Check the chain tension. ( p. 87)
– Raise the motorcycle with the rear wheel stand. ( p. 78)

KTM RC 125 Specifications

General

Displacement	124.7 cc
Transmission	6-speed
Fuel System	Electronic Fuel Injection
Bore x Stroke	58 mm x 47.2 mm
Engine Type	Liquid-cooled, 1-cylinder, 4-stroke engine
Max Torque	12 Nm @ 8, 000 rpm
Front Suspension	WP upside-down fork
Rear Suspension	WP Monoshock
Front Brake	Single disc, 4-piston caliper
Rear Brake	Single disc, single-piston caliper
Frame	Steel trellis frame
Front Tire	110/70 R17
Rear Tire	150/60-17