Pair Narrow 20"x1.5"/ 20" X 1.75 406 - 40/47 Inner Tubes Folder Bike 

• A pair of 20" inner-tubes in a thinner size for some narrower size tyres used on folding bikes
• These will fit tyre sizes like 20" x 1.5", 20 X 1.6 Up to  20" x 1.75"  
• 406 rim size
• 32mm car type Schrader valve.
• 140grams per tube
• For postage cost savings we send these out loose flat packed