CYCLAMI Ultralight Bicycle Inner Tube Specifications for MTB and Trail Riders
Choosing the correct valve length matters more than most riders realise, and the availability of both 45mm and 65mm French valve options in this CYCLAMI range means you can match the tube to your exact rim depth without compromise. The 26, 27.5, and 29-inch MTB fit covers virtually every modern mountain bike wheel standard, from classic 26-inch trail builds to the now-dominant 29-inch cross-country and enduro platforms. Ultra-thin TPU construction reduces tube weight by a substantial margin compared to butyl alternatives, and the material’s natural elasticity means the tube conforms precisely to the tyre casing, reducing the micro-movements that cause premature wear at the valve base. Deep rim compatible design with the 65mm valve option is particularly valuable for riders running carbon hoops or aero-profile MTB rims, where a 45mm valve simply does not clear the rim bed. This trusted brand delivers each tube with consistent wall uniformity verified at production, so you can shop now from the official CYCLAMI store and know the product arriving at your door matches every published specification.

















AliExpress Shopper –
Compact and well-priced
AliExpress Shopper –
Very light, takes up little space and effective. For a very reasonable budget, we couldn’t ask for more.
AliExpress Shopper –
just as described, useful
L***o –
After I started using it, I abandoned the conventional rubber ones.
AliExpress Shopper –
It is fragile, you have to be very careful as it is very light, but if you puncture it too often, other options are better.