C1 Electric Bicycle Kit - UK Silver Disc Brake Bike - Motor Only

Please measure from the centre of the rear axle to the centre of the pedal crank. For a tandem this means the centre of the front crank.

Please measure from the centre of the pedal crank to the centre of the top bottle cage bolt. For a tandem this means the centre of the front crank - the Cytronex bottle should be positioned in the front triangle.

With the front wheel pointing forwards in line with the bicycle frame - please measure from the centre of the top bottle cage bolt to the centre of the front axle.

If you have a flat handlebar please measure from the centre of the top bottle cage bolt to the centre of the inside edge of the gear shift mount.

If you have a drop handlebar please measure from the centre of the top bottle cage bolt to the centre of the inside edge of your handlebar tape.