Excess Tube — Presta Valve 40mm

Overview

The Excess Tube is a standard-weight inner tube designed for BMX racing, featuring a Presta valve (small valve) with 40mm length. The Presta valve is standard on modern BMX racing rims and performance wheelsets. Available in multiple sizes including 18", 20", and 24" options to fit a wide range of BMX and cruiser class wheels.

Key Features

• Presta valve (small valve) — Thinner valve design requires Presta-compatible rim valve holes; standard on modern BMX racing rims

• 40mm valve length — Standard length suitable for most BMX rim thicknesses; clears low to medium-profile rims

• Standard rubber construction — Durable compound balances weight and puncture resistance for racing and training

• Broad size availability — Options for 18" mini BMX, standard 20", and 24" cruiser wheels, plus narrow 24" race tires

• BMX racing specific — Designed for the demands of competitive BMX racing

Technical Specifications

• Material: Rubber

• Valve type: Presta

• Valve length: 40mm

• Available sizes and weights:

  • 18 x 1" — 81g / 2.84 oz

  • 20 x 1-1/8" — 72g / 2.56 oz

  • 20 x 1-3/8" — 120g / 4.25 oz

  • 20 x 1.5-1.75" — 145g / 5.12 oz

  • 24 x 1-1/8" — 86g / 3.04 oz

  • 24 x 1.5-1.75" — 171g / 6.04 oz

Compatibility & Ideal Use Cases

• Rim compatibility: Presta valve drillings (standard 6.5mm hole)

• Tire compatibility: Mini BMX (18 x 1"), narrow race tires (20 x 1-1/8"), mid-width race tires (20 x 1-3/8"), standard BMX race tires (20 x 1.5-1.75"), narrow cruiser tires (24 x 1-1/8"), and standard cruiser tires (24 x 1.5-1.75")

• Valve length suitability: 40mm works with low to medium-profile rims; measure rim depth before purchasing

• Best for: Riders preferring Presta valves; BMX racers needing standard-weight durability; multi-size fleet compatibility (18"/20"/24")

• Ideal use: BMX racing, training, practice, and everyday riding

• Not suitable for: Schraeder-only rims (without adapter); deep aero rims requiring longer valve (50mm+); riders seeking maximum weight savings (consider Lite version)