TRAN-X STRAIGHT CUT DROP GEAR SYSTEM

This gear system has been specially developed to offer a greater variety of ratios based around a common 30 tooth idler gear.  This greatly reduces the cost of changing ratios as a maximum of two other gears are all this is necessary to alter to a required ratio.  It is also less costly than changing a crown wheel and pinion.

The fewer teeth on the idler gear, in comparison to other makes, also increases the strength of the gear – minimising failure when used on the more powerful A series engines.  The advanced technical design, method of production and stringent individual post manufacturing checks, ensures gear lash is kept to a minimum commensurate with reliability.  This reduces the “rattle” associated with straight cut gears by an appreciable amount, making them more civilised for road use.

The following list shows attainable ratios with this system:-

NUMBER OF TEETH ON –
RATIO              PRIMARY         IDLER               INPUT
.958                   24                                                23
1.1                     24                                                24
1.0416              24                                               25
1.0434              23                    30                       24
1.045                22                                                23
1.087                23                                                25
1.09                  22                                                24
1.136                22                                                25

There is also an extra strong 1 to 1 set originally designed for and used in the Metro Turbo Challenge.  The teeth configuration on this is 23-30-23.

Please also state when ordering primary gears whether the engine is small bore type, ie. 850, 998, 110 with straight crank nose, or large bore type, ie. 1275 + with stepped crank nose.

NOTE:-

THESE ARE NOT INTERCHANGEABLE WITH OTHER MAKES OF DROP GEARS.