- ISO Diameter: 507 / 24" BMX - Tube Compound: Butyl - Wall Thickness: 0.9mm - Valve: Presta - Valve Core: Removable - Valve Shaft: Threaded Note: This product may have different packaging than pictured with a slightly different labelled size. Rest assured, the size range on the package will have the same or a broader functional range as the listed sizing of the product you ordered.

Always needed. Quality tested and a great value, the 0.9mm thick butyl rubber innertube strikes the perfect balance between weight and durability. Where it thrives: In the garage, on the bike What it's built for: Durability, Fixing Highlights: - Presta valve with a fixed/non-removable valve core 0.9mm wall thickness - Each tube passes a 24 hour air hold test prior to packaging

- Valve Type: Presta - Valve Core: Removable - Butyl rubber - Wall Thickness: 4.3mm

- ISO Diameter: 507 / 24" BMX - Tube Compound: Butyl - Wall Thickness: 0.9mm - Valve: Standard Schrader - Shaft Type: Smooth - Valve Core: Removable

- ISO Diameter: 622 / Road / 29" - Tube Compound: Butyl - Wall Thickness: 0.9mm - Valve: Presta - Shaft Type: Threaded - Valve Core: Removable

- Valve type: Schrader - Valve core: Removable - Butyl rubber - Wall thickness: 0.9mm

Always needed. Quality tested and a great value, the 0.9mm thick butyl rubber innertube strikes the perfect balance between weight and durability. Where it thrives: In the garage, on the bike What it's built for: Durability, Fixing Highlights: - Schrader valve (American valve) with a removable valve core - 0.9mm wall thickness - Each tube passes a 24 hour air hold test prior to packaging

- Valve type: Schrader - Valve core: Removable - Butyl rubber - Wall thickness: 4.3mm

- Size: 29 x 1.9 – 2.3 - ISO Diameter: 622 / road / 29" , 630 / 27" - ISO Width: 48mm, 49mm, 50mm, 51mm, 52mm, 53mm, 54mm - Tube Compound: Butyl - Valve: Presta - Valve Core: Removable - Valve Shaft: Threaded - Weight: 176g (32mm), 178g (48mm)

Serfas replacement inner tubes are lightweight, durable, and affordable. The thorn-resistant version helps reduce the chances of flats.

When building your featherweight dream bike, don't forget the tubes! Michelin's Aircomp Ultralight tubes are nearly weightless for minimum rolling resistance and maximum speed. - Weight: 75 grams

- Labeled Size: 26 x 3.5 – 4 - ISO Width: 88mm – 100mm - ISO Diameter: 559 / 26" MTN - Valve: Presta Short 32-40mm - Valve Core: Removable - Wall Thickness: 1mm - Weight: 500g