MEROCA Ultralight TPU Inner Tube 20" (406/451) 45mm Presta valve (BMX)

CRITICAL WARNING - READ BEFORE OPENING

DO NOT INFLATE THIS TUBE OUTSIDE THE TIRE.

This is the most important rule for TPU tubes.
TPU material is not like black rubber. It behaves like a plastic bag. If you stretch it, it does not shrink back.
If you pump it outside the tire: It will bulge permanently. The tube will look like it has an aneurysm. This ruins the tube immediately. We cannot offer refunds for this user error.
If you pump it inside the tire: The tire casing holds the shape. This is the correct way. The tube will work perfectly and safely.
Max pressure outside tire: 0.5 PSI (Just enough to make it round).

Product Highlights
Instant Weight Savings This tube weighs approximately 28g. It is about 70g to 100g lighter than a standard rubber tube. This makes your bike accelerate faster.
Specific Fit for Folding Bikes Designed specifically for 20-inch (406) wheels. Fits common folding bikes like Dahon, Tern, Java, and Fnhon.
Pocket Sized It folds 50% smaller than standard rubber tubes. It takes up very little space in your saddlebag or jersey pocket.
High Durability Made from premium TPU material. It offers better puncture resistance against small thorns compared to lightweight rubber tubes.

Technical Specifications

Brand: Meroca
Material: TPU (Thermoplastic Polyurethane)
Size: 20 Inch (ETRTO 406)
Valve Type: Presta Valve (French / FV)
Valve Length: 45mm
Weight: Approx 28g
Color: Green

COMPATIBILITY CHECK (Please Read)
Please check the sidewall of your tire before buying. 20-inch wheels come in two different sizes.

YES - This fits:
Tires marked 20 x 1.25
Tires marked 20 x 1.35
Tires marked 20 x 1.50
Tires marked 20 x 1.75
(These are ETRTO 406 sizing)

NO - This does NOT fit:
Tires marked 20 x 1 1/8
Tires marked 20 x 1 3/8
(These are ETRTO 451 sizing, which is larger)
 

Please visit our website at http://www.ecomtb.com.my OR https://shopee.com.my/eco_mtb
** There is 1-3cm errors due to manual measurement. Please kindly understand.
** Actual product colour may slightly vary due to photographic lighting sources or your monitor settings.
** WE DO NOT DO COD
** ONLINE ONLY
** We support original products only.
** PRICE INDICATED IS ALREADY BEST PRICE, EXCLUDE COURIER

Last Updated @ 24/1/2026 9:38:03 AM