I purchased a Gain M20i. It came with Mavic tubeless rims and Mavic UST tubeless tyres 700 x 28 but was fitted with tubes. I did about 1000 km with no problems but on one day I had 3 punctures about 20 km apart. When putting in new tubes on the ride I couldn't find any problem. After running out of tubes, my support crew (my wife) collected my bike and myself and took me home. I finally found a small piece of wire that had caused all 3 punctures.
I decided to convert the wheels to full tubeless with the Mavic valves and some sealant. The tyres went on with just my floor pump and I put the sealant in through the valve with no mess. After pumping up an extremely small amount of sealant came out a hole where the wire was and then no more.
I have done about 300 km since with no problems. I have the pressure set at about 65 psi front and 75 psi in the back.
Overall I have happy with the tubeless setup.
Chris
I decided to convert the wheels to full tubeless with the Mavic valves and some sealant. The tyres went on with just my floor pump and I put the sealant in through the valve with no mess. After pumping up an extremely small amount of sealant came out a hole where the wire was and then no more.
I have done about 300 km since with no problems. I have the pressure set at about 65 psi front and 75 psi in the back.
Overall I have happy with the tubeless setup.
Chris