SCHWALBE 7A-SV 20×1-1/8 (451) | Reliable Butyl Tube for 451 Wheels

A classic inner tube of Schwalbe quality, supporting your important rides.

The SCHWALBE 7A-SV is a high-quality butyl tube compatible with 20×1-1/8 (ETRTO 451) size. Designed for mini velos and small-wheel road bikes using the 451 standard, it offers stable air retention and excellent durability.

Made from high-quality butyl rubber, it minimizes air pressure loss, allowing for worry-free use from daily commutes to sports rides. It's recommended not only as a spare tube to carry but also for regular replacement.

Furthermore, it features a Presta (SV) valve with a removable valve core, making it practical for sealant injection and maintenance.

Features

• Butyl tube compatible with 20×1-1/8 (451) size
• High quality and reliability unique to SCHWALBE
• Excellent air retention to suppress pressure loss
• Presta (SV) valve
• Removable valve core
• Ideal as a portable spare tube
• Compatible with mini velos and small-wheel sport bikes
• Versatile for daily use to long rides

SPEC

• Brand: SCHWALBE
• Model: 7A-SV
• Compatible Size: 20×1-1/8 (451)
• Valve Type: SV (Presta)
• Valve Length: 40mm
• Valve Core: Removable
• Approx. Weight: 105g
• Material: Butyl rubber

Since the selection of 451 size tubes is more limited compared to the common 406 size, it's reassuring to choose a product from a reliable manufacturer. SCHWALBE tubes offer high air retention, delivering stable performance for everything from daily use to sports rides.

Especially for 451-standard mini velos and small-wheel road bikes, carrying a spare tube provides peace of mind. The removable valve core is also a welcome feature, offering easy maintenance.

This classic model is recommended not only as a replacement but also as a spare for touring and long rides.