Apologies if this has been covered before. 
My 56 plate GSA will shortly be due its 24k service. I have a years BM used bike warranty (bike purchased from Balderston's at the end of April).
If I have the service done by an independent (using genuine parts etc) will this invalidate the Warranty?
My 56 plate GSA will shortly be due its 24k service. I have a years BM used bike warranty (bike purchased from Balderston's at the end of April).
If I have the service done by an independent (using genuine parts etc) will this invalidate the Warranty?

