Aluminium-finished 12x17mm knob - silver Nice quality knob which feels way better than it should at the price. Aluminium outer, plastic inner. Silver Pot shaft size: 6.3mm splined Diameter: 12mm Height: 17mm Fitting: Push fit Price is per knob. Product Code: 12x17Alum Brand: Pedal Parts Weight: 60.0g Product Condition: New Notify me when product is back in stock £0.54 inc. tax £0.45 ex. tax ? Tax based on United Kingdom. x