I purchased a new ultimate model made of full steel material, not the ztto slr gen which is only light and has terrible durability.
It's an 11-speed 34t model, applied a coupon during the sale period for $77, and the weight including the locking ring is 184.5g
There are no shifting troubles, but it's noisy. At first, there was a sharp cutting sound, so I sprayed spray grease and applied plenty of oil to the chain, and the sharp sound was reduced, but it's still noisy. Even during shifting, there's a tinking~tinking~ sound. And even just riding, there's constantly some kind of small noise. These are sounds that would never be heard with Shimano..
After a 20km test ride, I can definitely feel the light weight. On long distances, the noise seems like it would make you quite tired.
