# faq
Last Updated: Friday, December 30th 2011 at 10:07 AM
What classes are available and which are run at Blackbushe?
What is the recommended gear ratio to use for………………..?
| Cadet In the range of:- 12: t.b.a. |
Junior TKM In the range of:- 12: t.b.a. |
| MiniMax In the range of :- 12: 75,76,77,78 |
Junior Max In the range of :- 12: 76,77,78,79 |
| Senior Max In the range of:- 12: 82,83,84,85 |
250 Gearbox In the range of:- 12: t.b.a. |
| 125 gearbox In the range of:- 12: t.b.a. |
Note that teeth are added to the rear sprocket under wet conditions – typically up to 4 teeth more.
You are able to determine which combination of front / rear sprockets give similar gear ratios buy using the gear ratio chart below.
General gear ratio chart:-
click for larger image