750 SF2 Left Hand Gear Shift Conversion

[Bearsaregood]

I've seen an SF2 with the gear shift on the LHS, same as BMW et al. Is there a kit available for this conversion, and more to the point how difficult to change both gear shift and foot brake.

 

[phil37]

I've got a x-over fitted to a bike I imported - it uses needle roller bearings on a 10mm shaft with a lever fixed at both ends - rose joints on round bar are then used to connect the brake and gears, the n/roller housing is welded to frame with three small neat welds. - regards - Phil

 

[Bearsaregood]

Thanks Phil. The pix are brilliant

 

[chrisk]

Hi Phil
Good idea fitting it there. Timing of this thread is great for me, just considering my options for a x-over.
Food for thought, although I'll be mounting it much lower than yours.
Thanks.

 

[chrisk]

Whilst on the subject: Does anyone know what the size/spline count of the gear selector spline on a SF?

 

[hooksey]

Here we go Knackers , 13.6mm / 22 .

Dont go nailing me to the cross over these # 

Hooksey.

 

[Cosi]

Boy left
Man right

Decide what you'd like to be...

 

[phil37]

Whilst on the subject: Does anyone know what the size/spline count of the gear selector spline on a SF? 

I use a gear shaft mounted in a holder to fit my fly press to punch out the splines for my home made gear levers - Regards - Phil

 

[chrisk]

I use a gear shaft mounted in a holder to fit my fly press to punch out the splines for my home made gear levers - Regards - Phil

So rather than 'broaching' the subject, you 'punch' the subject out! Now there's an idea ..... I'll borrow that concept thanks.

The other thing I'm 'contemplating' is to use timing gears and belt from the x-over to the gear shaft.
The logic: Rods ends wear and the slop is annoying, this way it's direct, positive, and if a shorter throw of the lever is wanted, the x-over gear is changed to a larger one. Good enough for CNC's and Ducati valve train drive, good enough for this application.
Something like this: http://www.ebay.com/itm/2pcs-XL-XL16-Timing-Pulleys-16-Tooth-8mm-Bore-110XL-Belt-for-Stepper-Motor-/141151365915?pt=LH_DefaultDomain_0&hash=item20dd46eb1b#ht_3459wt_1127

Boy left
Man right

Decide what you'd like to be...

For me, 40 years of using my left foot to change gears has embeded a natural, almost subconscious, responce when changing gears ...... why change it? This old boy ain't changing.

 

[phil37]

Hi Chris - The belt drive idea is a bit overkill (IMHO) - could need a lot of calcs to get the right size cogs and ratios - then "feel" could be a bit vague. I've had the rose joints on my 750 for 30 odd years and the wear is almost undedectable.
I did do a similar idea on my MklV  years ago for a half speed ignition - and needed a tensioner too - used a sealed bearing to do that. - regards - Phil