From what I'm seeing it doesn't look like the Tubliss system is compatible on the Terra. Rear rim is too wide. Is that an accurate assessment?
When I was looking into it, the fact that the Terra rims (front & rear) are wider than what the Tubilss specs call for is what I took away from it. There is also the "Off-Road use only and is NOT recommended for street use" thing that bothered me a bit too.
Hmm... I'd be more concerned about the former than the latter. 'Off-Road' could mean that they haven't gone through the DOT approval process - which is probably incredibly expensive. Or that they don't want to accept that kind of liability. But running outside of spec isn't usually a very good idea. Darn.
I suspect that the offroad use only is to avoid situations they haven't really accounted for. Running the bike at high speeds on sealed roads will probably create much more heat than most offroad use. The big KTM 1290 adventure bike has a similar type of setup with spokes from the hub to the centre channel of the rims, then some sealing solution to stop air leakage and then tubeless tyres. Running at high speed (and now I'm talking 200kph +) these have been known to suffer massive and almost instantaneous loss of pressure because the sealing system gets pulled right out of the rim due to the rotational forces and becomes unseated. It happened a few weeks ago to a rider right in front of me. Lucky for him the pressure loss was after he slowed down and went through some corners and was then at low speed on straight road.
My concerns goes even a bit beyond just loosing the seal. While the 1290 experienced a failure in the seal, it has rims designed for tubeless tires with a rim bead and I assume was running tubeless tires. The Tubliss system relies on that 100 PSI tube to not only seal but to hold the tire on.
I was wanting to run Tubliss on my flat track bike and ran in to the same rim too wide thing. By design I doubt Tubliss will ever be able work on a wide rim.
