Surly 26 x 3.0–4.0 Inner Tube

Surly’s Inner Tube is built tough to handle the demands of plus-size and fat bike tires. Designed to fit a wide range of big rubber, this durable butyl tube keeps your ride rolling through sand, snow, or slop without a hitch. The removable valve core makes it easy to add sealant or swap out valves, while the threaded Presta stem ensures a secure fit in deep rims.

Key Features

• Compatible with a wide range of plus-size and fat bike tires

• Removable Presta valve core for easy maintenance or sealant use

• Threaded valve shaft for secure pump attachment

• Constructed from durable butyl rubber to resist punctures and maintain air pressure

• Perfect for fat bikes, adventure rigs, and winter rides

Specifications

• Labeled Size: 26 x 3.0–4.0

• Tube Compound: Butyl

• ISO Diameter: 559 / 26" MTN

• ISO Width (mm): 76–100 mm

• Valve Type: Presta (Short 32–40 mm)

• Valve Core: Removable

• Shaft Type: Threaded

• Weight: 310 g