Pack X2 Excess Bluetech Ultra Light Tubes Presta Valve 40mm

Product Overview

The Excess Bluetech Ultra Light inner tubes are premium BMX racing tubes engineered for minimum weight without compromising durability. Made from thermoplastic polyurethane (TPU), they weigh approximately one-third of standard lite tubes. The pack includes two tubes with 40mm alloy Presta valves and pinch-prevention o-rings for reliable performance across BMX wheel sizes.

Key Features

• Thermoplastic polyurethane (TPU) construction — Lightweight polymer blend delivers superior strength-to-weight ratio compared to traditional rubber; developed by BF Goodrich for automotive and sporting applications
• Ultra-lightweight design — Weighs one-third less than standard lite tubes, reducing unsprung weight and improving acceleration and responsiveness during racing
• Smoked transparent finish — Allows visual inspection of tube condition and pressure without removal; aesthetic design distinguishes premium racing tubes
• 40mm alloy Presta valve — Lightweight valve head minimizes valve weight; removable core enables quick pressure adjustments and simplified maintenance
• Pinch prevention o-ring included — Elastomer ring installs between valve base and rim valve hole, preventing tube pinching during tire installation and maintaining valve alignment
• 100% recyclable material — TPU composition supports sustainability without sacrificing performance
• Durable and flexible polymer blend — Combines hardness and elasticity to resist punctures while accommodating rim and tire variations

Technical Specifications

• Material: Thermoplastic polyurethane (TPU)
• Valve type: Presta, 40mm alloy
• Valve core: Removable
• Pack quantity: 2 tubes
• Weight by size:
  • 20 x 1-1/8"-3/8": 34 grams per tube
  • 20 x 1.4"-1.9": 47 grams per tube
  • OS20 x 1.4"-1.9": 47 grams per tube
  • 24 x 1-1/8"-3/8": 49 grams per tube
  • 24 x 1.4"-1.9": 59 grams per tube
• Included accessories: Pinch prevention o-rings (2 per pack)
• Finish: Smoked transparent

Compatibility and Ideal Use Cases

Designed for 20-inch and 24-inch BMX racing wheels with Presta valve rims. Compatible with standard BMX tire widths and rim valve holes. Ideal for competitive racers prioritizing minimum rolling weight and acceleration. Recommended for racing applications where every gram of unsprung weight impacts performance. Suitable for all BMX racing categories and disciplines. Two-pack format allows replacement of both wheels or rotation of spares between events.

Included with the ultralight tube is a Pinch Prevention O Ring. This O Ring is to be installed between the tube valve base and the inside the of the rim valve hole. This will help with Pinch Prevention on the tube as well as help keep the tube secure in the correct location directly under the valve hole.

Features:

• Ultra Light Smoked Transparent Thermoplastic Polyurethane Material
• 40 mm Long Alloy Valve with Removable Valve Core
• TPU - Thermoplastic Polyurethane was developed by BF Goodrich
• Tube material is 100% recyclable
• Sold in pairs

Ultra Light Tube Weights:

• 20 x 1-1/8"-3/8": 34 g
• 20 x 1.4"-1.9": 47 g
• OS20 x 1.4"-1.9": 47 g
• 24 x 1-1/8"-3/8": 49 g
• 24 x 1.4"-1.9": 59 g