Co-op Cycles Presta Tube - 650b x 38-50 mm
Quickly replace your punctured or worn-out tube with this Co-op Cycles Presta tube for 650b wheels with 38–50 mm wide tires. Also compatible with 27.5 in. wheels with 1.5–1.95 in. wide tires.
- Fully threaded 48 mm Presta valve
- Please note: This tube works with Presta-compatible rims
Imported.
View all Co-op Cycles Bike TubesBest Use | Cycling |
---|---|
Wheel Size | 650b 27.5 inches |
Valve Type | Presta |
Dimensions | 650b x 38 - 50 millimeters 27.5 x 1.5 - 1.95 inches |
Weight | 199 grams |
Sustainability | From a Climate Label Certified brand |
Better gear is built together
From feedback to field testing, all of our gear is dialed-in by REI Co-op members. Their adventures informed every stitch and detail—making for better, longer-lasting gear.


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valve stem snapped in half while inflating
purchased this tube as a spare a few months ago, and it's been in my bike bag since; i finally needed to use it today, and while i was inflating it with my travel pump, the valve stem literally snapped in half. so much for spare tube! not sure who manufactures these tubes for REI, but the manufacturing tolerances must be way off...
Small Purchase
It ended up being a very small purchase but it was because REI only sells me what I need. I trust REI with my bicycle.
Good
This is a great value and you'd be hard pressed to find a better deal on tubes.
Very satisfied
Dry happy with their service. Very professional. Thank you
650 inner tube
A little “heavy duty” but successful on week of riding