Tubes 27.5" (650B)

The 27.5" tyre and wheel size now look set to become the standard mountain bike size over the next few years. It's also known as 650B and is, like other sizes, an old size resurrected, and in this case, given a new (and confusing) name. The important dimension is 584 - that's the ETRTO number for this rim and tyre size - it's the diameter in mm of the tyre bead seat in the rim, and is the internal diameter of the tyre.

Giant Tube 27.5 x 2.1-2.4 with 48mm Presta Valve

1660
!
Presta valve tube from Giant to suit their new range of 27.5" mountain bikes.
Weight: 196g.

Maxxis Tube Welter Weight 27.5 x 1.90/2.35 with 33mm Schrader Valve

1595
!
Tube to suit the "new" mountain bike tyre size of 27.5" (650B. Schrader (car) valve.

Puncture resistant 0.9mm wall thickness.

Weight: 180g.

Schwalbe Tube #21 650B Freeride Presta

2119
!

Top quality tube with heavier walls for impact puncture resistance.

Weight: 197 g.

Tioga Tube 26 x 1-3/8 with Schrader Valve

2662
!
For old-fashioned bikes, not 26" mountain bikes. Also suitable for narrower 650b tyres (27.5") below 1.9" width.

Schrader (car) Valve.

Weight: 157g.

Kenda Tube 27.5 x 1.75 - 2.125 PV48

2818
!
kenda27.5pv48
Butyl tube 27.5 x 1.75/2.125

Presta valve 48mm long

Weight: 195g

Tioga Tube Thorn Resistant 27.5 x 1.9/2.1 Presta

2820
!
Tioga Tube Thorn Resistant 27.5 x 1.9/2.1 Presta 48mm
Weight: 664g

Tioga Tube Thorn Resistant 27.5 x 1.9/2.1 Schrader Valve

2819
!
Tioga Tube Thorn Resistant 27.5 x 1.9/2.1 Schrader Valve
Weight: 664g

Schwalbe SV12 tube PV, 27.5x 37 to 44mm

2961
!
Schwalbe presta tube to suit a 27.5x1.5 (or similiar) tyre. This one is perfect for the Cannondale Slate set up.
ETRTO: 37-584 to 44-584 for 27.5 wheel setups.