on a trail bike
…the alps
…carbon rims
…mixed conditions “trail” tyres
…not too heavy
…Budget ideally <£50
Being in the alps doesn’t necessarily mean you wreck gear but wrecking carbon rims is a non-trivial hurt.
My own experience is of:
1. Inexplicably discovering (seriously) dinged (alu) rims
2. Punctures if my fun quotient (confidence) gets up
At the end of several months last year I downgraded from Bontrager G5s (DH tyres) to Wild Enduro front and a Bonty SE4 out back but the riding had become more uplift assisted back country than uplift and park plummet. I’d taken those tyres off the bike months earlier when the puncture occurrence got too high.
Bike was a 170/165 enduro bike. Key thing is to have enough air in your suspension. If your suspension bottoms out, all the load goes into the tyre. That’s always going to get you rim dings and pinch flats. Then decent tyre pressure; nothing mad; at 85kg I was 24/28 psi. Rebound fast; packing down feels godawful and that feeling also ends up loading into the tyres. LSC adjustment (if you’ve got it) to dial down the liveliness of that fast rebound.
FWIW, I find thin casing tyres really pingy in Alpine terrain and that gets worse with tubeless so I managed reasonably well with those tyres on tubes. More than likely YMMV.