For those not aware Ohlins recently released their Blackline of shocks. The YA588 is the equivalent to the YA535 as far as I can tell other than being blacked out. I got it installed last night and went for a ride this morning. What a difference. I have only set sag and not yet played with the damping and the difference from stock is amazing. Thanks to the guys over at Fast Bike Industries. They are the best.