Specialized Inner Tube

Yes, this tube is designed for 20-inch wheels with an ISO diameter of 406. It is a standard size for many BMX, folding, and kids' bikes, but always check your tire sidewall to confirm the ISO measurement before purchasing.

Yes, by reinforcing only the outer wall that faces the road, Specialized keeps the inner wall thinner. This design effectively balances puncture protection with weight savings, preventing the tube from feeling heavy or sluggish.

Absolutely. This tube uses a standard Schrader valve, which is the same type found on most car tires and standard bicycle pumps. You won't need any special adapters.

Yes, the valve core is removable. This is a helpful feature if you need to add tire sealant or if you ever need to replace a damaged core without swapping out the entire tube.

It is an excellent choice for rougher terrain. The reinforced outer wall is specifically engineered to deflect thorns and sharp debris, making it much more reliable than a standard lightweight tube when riding on trails or gravel.