The CST 20 Inch Tube with a 57-406 ETRTO, 20x2.125 specs is designed for freestyle BMX bikes and features an SV 48MM Schrader valve, also known as a Car Valve.

CST 20-inch tube for freestyle BMX bike tires, featuring a Schrader valve, 20x1 3/8 size, with a bold orange and black box.

Box of CST 20 Inch Tube with Schrader Valve, size 47-406 ETRTO and 20x1.75, ideal for BMX bike tubes.

CST 20 Inch Tube / Schrader Valve (Car Valve), with specs 61-406 ETRTO, 20x2.2/2.5, SV48MM; ideal for your bike needs.

A red and black box labeled "20x3.0 SV" with a small tube illustration is ideal for storing CST 20 Inch Tube / Schrader Valve (Car Valve) tubes, designed for your 20-inch freestyle BMX bike.

The CST 20 Inch Tube / Schrader Valve (Car Valve) comes in black, red, and blue packaging labeled 40/47-406 ETRTO, 20x1.50/1.75, SV48MM and contains a high-quality 20-inch BMX tube with a Schrader valve design.

Description

Coming to you from the G.O.A.T. of tube manufacturers: CST! These are what you need for your 20 inch freestyle BMX bike!

Schrader valve tubes (or car valve) are the most popular tube type for freestyle BMX bikes and a number of BMX race bikes. With a versatile car valve, you can pump up your tyre at any servo around the country. Find the right sized CST tube for your 20 inch right here, and just don't just grab one, you can never have enough spare tubes in the tool bag.

PRO TIP: Tubes stretch! Tubes will just fill your tyre; so, 2.1 or 2.125-2.3 inch (or even smaller, honestly) is more than enough rubber to work in anything up to your 2.5 inch tyres (or fatter).

Features

Schrader valve fits servo pumps. The car style valve means you can top up at any service station air hose in the country.
Made for 20 inch wheels. Sized for 20 inch freestyle BMX wheels, and it suits plenty of 20 inch race bikes too.
The common freestyle choice. Schrader is the most popular tube type on freestyle BMX bikes, so most freestyle rims are already drilled for it.
Tubes stretch to fit. A 2.1 or 2.125 to 2.3 inch tube will fill anything up to a 2.5 inch tyre, so the exact size is not critical.
Worth keeping spares. You can never have too many tubes in the tool bag, so grab more than one while you are here.

Specifications

Fits: 20 inch freestyle BMX wheels
Wheel size: 20"
Valve: Schrader (car valve)

CST 20 Inch Tube / Schrader Valve (Car Valve)

Name: CST 20 Inch Tube / Schrader Valve (Car Valve)
Brand: CST
SKU: CSTU320-30-340
Price: 9.99 AUD
Availability: InStock
Rating: 4.8571 (7 reviews)

Brand: CST SKU: Click to copy the SKU and show the pick location

$11.99 AUD

Or 4 payments of $2.99 AUD with

Colour - Black

Width - 2.8-3.0 Inch (34mm Valve)

$11.99 AUD

Price match request

CST 20 Inch Tube / Schrader Valve (Car Valve) - Black / 2.8-3.0 Inch (34mm Valve)

$12.99 flat-rate shipping Australia-wide

Express from $21.99

Free in-store pickup - Brisbane

Availability

	Black
1-3/8 Inch (34mm Valve)
1.75 Inch (34mm Valve)
2.125 (34mm Valve)
2.125 Inch (48mm Valve)
2.2-2.5 Inch (48mm Valve)
2.8-3.0 Inch (34mm Valve)
1.5-1.75 Inch (48mm Valve)