Road tubeless tyres holding pressure - a question

Bowks

I've got 2 wheelsets that I've converted to tubeless myself, a set of Spin Koppenberg MAX25 Fat Boys and the Giant SL1 that came with my TCR.

Both sets are marketed as tubeless ready, so I applied the requisite 2 layers of Stan's 21mm tape and I was able to get a pair of Schwable Pro Ones and Hutchinson Sector 28s seated them on with a regular track pump, however I am finding that the tyres lose the majority of their pressure over the course of a week. Is this something inherent with tubeless setups or have I got a few hours of troubleshooting in my future?

figbat

My MTB tyres did this for a couple of weeks - I just kept pumping them and riding it and now they pretty much stay hard <snigger>.

ryan_w-2

50ml of Stans Race Fluid per wheel should work.

Always pump up to max PSI and leave overnight after spinning wheels so fluid is displaced internally.

Bowks

Cheers chaps, I'll keep pumping and riding! THe sealant is a good call, I do need to check the sealant is still liquid on the Spins. Grubby job!

sloppyschleckonds

Make sure your valves are good quality and properly seated

Bowks

SloppySchleckonds wrote:

Make sure your valves are good quality and properly seated

I used Schwalbe valves ( as they're none more black!) and I've been sure not to over tighten them. I may dunk them in a pond or bucket to test they are airtight.

sloppyschleckonds

Bowks wrote:

SloppySchleckonds wrote:

Make sure your valves are good quality and properly seated

I used Schwalbe valves ( as they're none more black!) and I've been sure not to over tighten them. I may dunk them in a pond or bucket to test they are airtight.

I purchased some Reynolds rims, that came with valves/ rubbers that seated nicely in the rim. The no branded valves I had didn't sit as well.