-
As per title, I managed to blow a tire out of my wheel in a high speed descent and I'm not so sure how this had happened, but could have ended very very badly.
For context wheels are some rim braked carbon Rovals, brake track a bit worn out. Ridenow TPU tubes and Turbo Cotton tires, again, a bit thin. Was going down a long, twisty descent, temperature was pretty high (I'm in Spain) . I'm a confident descender, I've gone down that mountain, and worse, before and never cooked a rim.
If someone have a decent explanation other than delamination I'm all ears -
-
-
But in most cases the frame is good enough and people it's just fretting because you google creaks and go down Hambinis rabbit hole.
Doesn't help that every professional mechanic have a way instead of having training on a standardized way to do the job. Quite frustrating and doesn't help customer confidence. -
I don't think a tiny cilinder of alloy can straighten an offset BB hole in a modern carbon bike, they're way stronger than that. If anything it will stop movement, and that's something you can achieve with loctite anyways.
Only worth it if you're ready to replace bearings instead of the whole BB, and even like that it can be cheaper to get a new shimano PF -
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Measure and draw a triangle. Height is from BB to chainring, base is axis to end of chainring. Now add 2,5mm to the height, base should grow exponentially if you keep the same angles. Now calculate how much a bigger chainring measures. Or just trial and error, 46t is big enough for anyone but racers anyways.
-
Specialized pathfinder rear and tracer front is what I'm fitting to customers RN. They come super big and not too expensive, good grip, hard wearing and fast enough.
I'd probably go for Pirelli gravel M or something similar if the plan is UK SFAB though, most gravel tires are useless with the tiniest bit of mud. -
-
I skidded trough the rim tire and inner tube all flapping about for some terrifying meters until I lost control. Everything mangled but the tire somehow managed another 50k home.
One layer of carbon is peeling from the rim, but could be just the skidding