Maxxis Tube - Ultralight 650 x 19/23 PV48 RC

Quality:good Appearance:good Performance:goodNo leaks or punctures so far, Excellent choice for mountain biking, Easy to install and use, High-quality materials used, Provides a smooth ride, Improved my bike's performance, Great value for the price, Perfect fit for my bike,

Awesome peice of kit when looking to gain that 1%

Tube are light and durable as others have said a great alternative to the other light weight options. Save 40 grams off the tubes I used befor and nearly 60grams lighter than my cheap spares. These cost less than them super happy

Exactly as advertised

This is a quality light tube for skinny old school MTB tires or (gasp) 650b 47c gravel ones. Yes, it's "officially" a little undersized but it fits and works just fine while delivering both supple ride and weight reduction. If tubeless setup doesn't work for some reason or if you feel it's too much hassle, these tubes are the next best thing.

Great Value/Performance

This innertube is fantastic! It's impressively lightweight and incredibly durable. It has become my top choice for inner tubes because they have a long lifespan.

Light but not durable - beware for 2.2+ tires

Very hard to notice any difference in the tube weight, unsprung weight, etc. Took word of most reviews that these were nice tubes, but ran a pinch flat my 3rd run. Definitely happened in a rock garden, but normal tubes would have been fine in that scenario. My recommendation is to just grab the standard 27.5 tubes and avoid these unless you ride very smooth trails.PROS: LightweightCONS: DurabilityBEST USES: Road Biking, Mountain Biking

Looking for a Light 26" Tube?

I love these tubes. Lightweight tubes improve ride quality and make you quicker up the hill. I have had lightweight butyl tubes burst in hard dips while mountain biking, a very unenjoyable experience, to be sure. These take incredible amounts of punishment even at lower pressures. (~30psi is the lowest I'll go on a tubed XC setup for my riding style)However, puncture protection is the tire's job, not the tube's. So be sure to buy a tire with a good protection belt. If you're trying to get close to the effective weight of a tubeless setup without actually having to go tubeless, these are a great bet. Be sure to carry a spare and a patch kit with you when you ride.PROS: Improves ride quality, Sturdy, Supple, LightweightCONS: ExpensiveBEST USES: Mountain Bike, ... MoreI love these tubes. Lightweight tubes improve ride quality and make you quicker up the hill. I have had lightweight butyl tubes burst in hard dips while mountain biking, a very unenjoyable experience, to be sure. These take incredible amounts of punishment even at lower pressures. (~30psi is the lowest I'll go on a tubed XC setup for my riding style)However, puncture protection is the tire's job, not the tube's. So be sure to buy a tire with a good protection belt. If you're trying to get close to the effective weight of a tubeless setup without actually having to go tubeless, these are a great bet. Be sure to carry a spare and a patch kit with you when you ride.PROS: Improves ride quality, Sturdy, Supple, LightweightCONS: ExpensiveBEST USES: Mountain Bike, 26" commuter

Looks good only from far away

These tubes will be ok if you are finesse rider that checks tire pressure before every ride.Someone that does not sustain a lot of hard impacts. I would only recommend it for intermediate XC. The thin walls and high vulnerability of it to pinch flats in my opinion are not worth the weight savings.I would rather have the extra weight of a normal tube, and in return have security.PROS: Easy To Install, LightweightCONS: Thinwall, Easy To PinchBEST USES: Road Biking, Racing

Maxxis Lightweight Tube

It's a normal butyl rubber tube but its thinner construction make it as light as the latex rubber ones. The removable valve was key for me since I purchased this to use with a carbon aero rim which need to connect the valve extender. I hope the thinness of the tube makes it lower rolling resistance like of latex ones.

The lightest tube I could find for affordable price

I've necer used it before, I bought it because it was the lightest tube I could find for affordable price. I hope it will satisfy.Received it in Slovenia in 11 days.