My son in law has an e-bike shop in Torquay and is currently building an e-trike for a disabled customer.
To finish it he needs someone to enlarge the centre hole of a 16t motorcycle sprocket to 33mm and drill 6 mounting holes. However, it occurs that an existing sprocket may be too hard for conventional machining - if so, could a water jet be the solution?
Is there anyone here who could do it for him or suggest someone?
