Öhlins Rear Shock Absorber TTX GP YZF-R6TTX GP Shock Absorber YA 469 Based on your YZF R6's performance, its cost and available mounting space, hlins have designed a shock that we think suits it, both when it comes to price and performance. The basic setup, the design of the shim stacks and the calibration of the adjusters, is tested both on road and track. These are the results of true tests with your bike and not guesswork! hlins manufactures more than 300 different shock absorber models,