Shock Absorber Type 641 Competition YSS The only difference is that

The only difference is that it omits the compression reservoir and therefore the ability to adjust high- and low-speed compression

Whether stock height or up to 80 mm of lowering

It’s easy to adjust

you can lower the motorcycle by up to 60 mm while keeping full ESA handlebar control

Shock Absorber Type 641 Competition YSS The only difference is thatThis shock absorber connects its compression tank to the main body using a flexible steel hose, making it an ideal choice for motorcycles with limited installation space. The hose can be routed freely wherever space allows for instance, along the rear frame where airflow can also aid in additional cooling. The external adjustment screws for high and low speed compression, each adjustable in 22 clicks, are easily accessible. Rebound damping can be fine