Reply To: Have I broken my new Bobber? Great British Handcrafted Motorcycles › Forums › CCM Motorcycles – General Discussion › Have I broken my new Bobber? › Reply To: Have I broken my new Bobber? 5 June, 2022 at 8:24 am #12077 Andy MarshMember Yea I’ve got a spitfire six so C=circumference is most likely different for the bobber I think P is the same for all models, you can always phone the factory they are really helpful