Shimano GE500W Women's SPD - Black/Amber Size:EU 39 The hose and valving is

The hose and valving is hidden inside the inner tube rather than the outer cylinder delivering up to 10% more air per stroke compared to pumps of similar length

70 and 100 mm lengths

With a wider than normal 11-38t gear range

Oval (elliptical) chainring does not compromise the work of clutch mechanism in rear derailleur

3 full scoops) to 500ml of water in a bottle & shake well ensuring the lid is firmly closed

Shimano GE500W Women's SPD - Black/Amber Size:EU 39 The hose and valving isConfidently tackle technical terrain with the stylish trail ready GE5W. This womens specific SPD compatible shoe features a unique TORBAL 2. 0 midsole that allows the heel section to move torsionally, maintaining full range of motion for improved comfort, fluidity, and on bike control. Enduro optimized ULTREAD GE outsole delivers superior grip on slippery hike a bike sections, and has a molded pedal channel that provides a stable shoe to pedal