I made no assumption about Tillson's bike or yours.
Tillson's bike is made around 2009, early 2010.
I googled up various bits and bobs on the ProConnect made at that time and re-read the thread http://www.pedelecs.co.uk/forum/threads/kalkhoff-pro-connect-36-month-9000-review.9273/#post-112692
Other members gave their personal experience with different motor cogs.
Tom, which model do you have?
Tillson's bike is made around 2009, early 2010.
I googled up various bits and bobs on the ProConnect made at that time and re-read the thread http://www.pedelecs.co.uk/forum/threads/kalkhoff-pro-connect-36-month-9000-review.9273/#post-112692
Other members gave their personal experience with different motor cogs.
Tom, which model do you have?