CYCLAMI TPU Inner Tubes 2-Pack — 700C x32-47C & 29" MTB, 65mm Presta, Lightweight Puncture-Resistant Spares

CYCLAMI's 2-pack TPU inner tubes are lightweight, puncture-resistant replacements made for 700C gravel and 29" MTB tires with 65mm Presta valves.

These inner tubes use thermoplastic polyurethane (TPU) to deliver a noticeably lighter, more puncture-resistant option than standard butyl tubes. The set fits common gravel and mountain wheel sizes, comes with two tire levers, and keeps weight low so riders gain quicker acceleration and easier handling on mixed terrain. Built for cyclists who want a durable spare that won’t add bulk to a saddle bag, these tubes balance portability and performance without complex setup.

Which tire sizes and bikes are these tubes compatible with?

CYCLAMI TPU tubes cover a broad range of gravel and MTB sizes, so one pair can service multiple wheels across a fleet or during a ride. They are tailored for 700C gravel/road tires from 32C up to 47C and also fit 29" mountain bike tires.

• 700 x 32C / 35C / 37C / 40C / 47C compatible for gravel and many road gravel conversions
• 29" MTB fit for common trail tires
• 65mm Presta valve length to suit deep-section rims

How does TPU compare with traditional butyl inner tubes?

TPU is lighter and boasts improved abrasion and puncture resistance relative to many butyl tubes. That reduced mass translates into roughly 100 grams saved per tube compared with typical butyl options—meaning less rotational weight and quicker acceleration.

• Approximately 45 g per tube for minimized rotational mass
• Higher abrasion resistance for longevity on rough surfaces
• Better sensitivity to ride inputs for more responsive handling

What should I know about installation and care?

Installation follows standard inner-tube procedures, but take care with initial inflation and rim compatibility. Do not pre-inflate the tube above 5 PSI before seating it in the tire—overinflation can deform or damage TPU during installation.

• Keep initial inflation under 5 PSI when inserting into the tire
• Use provided tire levers to avoid pinching the tube during fitment
• Check rim tape and sharp edges to reduce puncture risk

What extras and support are included with the purchase?

The two-tube pack ships with two tire levers to help roadside repairs and a customer support promise from the brand. CYCLAMI provides technical guidance and after-sales assistance if any issues arise after delivery.

• Two TPU inner tubes in one pack for spares or front/rear replacement
• Two tire levers included for easier installation and removal
• Customer support available for setup questions or warranty help

Who is this for: Cyclists who ride mixed terrain—gravel, light trail, and commuter routes—will benefit most from CYCLAMI’s TPU inner tubes. They’re ideal for riders who prioritize low weight and reliable puncture resistance, want a compact spare for long rides or bikepacking, and need a 65mm Presta valve for deeper rims. If you seek an easy-to-carry replacement that reduces rotational mass while covering a wide range of 700C and 29" tire sizes, this 2-pack is a practical choice.