Anyone had issues with going tubeless on the fatbike? Especially with Jumbo Jim tyres?
Fitted some to my Surly ICT and went tubeless for the first time. But they keep loosing pressure when riding. If I ran them as soft as I would with inner tubes (Don’thave pressure gauge, just go off feel) they just kept getting gradually softer.
When pumped up harder (probably too hard) they seemed fine, but if I take a big hit they seem to loose all the air straight away, then just keep going down.
They seem fully seated on the rim (they are Surly My Other Brother Darryl 80mm rims) with the tubeless kit fitted, I inflated them with compressor to get them fully sealed, then let pressure back out.
I can see a small amount of sealant come out on part of the rim and tyre wall, but not massive amounts, nothing compared to my mtb or cross tyres when I’ve burped one of those tyres, but they have always reseated and never had further issues. Can’t see anywhere else where the sealant is coming out.
Any useful tips to get them to seal fully? And how much sealant do you use for fatbike tyres?
Cheers