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T160 Right Hand Gearchange
#784459 09/16/19 10:51 am
Joined: Aug 2019
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SJS Offline OP
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Hi, just seen an interesting T160 on UK eBay that has had the gear change converted to RHS for the apparent reason of achieving a much slicker gear change, which seems a reasonable expectation as you are effectively reducing the components involved in the process ?
Has anyone here done that conversion and if so did it achieve the desired effect and what was involved technically to do the changeover ( disregard the rear brake relocation as that looks fairly straight forward ).
Am I correct in assuming that the T160 gearbox is inherently the same as the T150 who's gear change was RHS as standard and that the change on the T160 to LHS was largely a marketing move to satisfy the American demand ?

The same bike also had a very impressive / expensive set of CV Carbs fitted that certainly looked a tidy set up.

Regards

Steve

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Re: T160 Right Hand Gearchange
SJS #784474 09/16/19 2:21 pm
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Internally the gearbox is the same. The T160 has a different outer gearbox case with the cross shaft and primary inner/outer cases with support bearings, sleeves and gears to actuate it. You have to plug all the cross shaft holes and spindle hole in the primary case and replace the outer T160 gearbox case with the T150. Look at the parts plates on TOL to see the differences. Yes, less parts between the pedal and internal shift mechanism.
The left gear change was a US mandate for uncoordinated people, not a rider demand.

Re: T160 Right Hand Gearchange
SJS #784554 09/17/19 7:35 am
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I wouldn't call the brake conversion straight forward.

Re: T160 Right Hand Gearchange
SJS #784661 09/18/19 8:53 am
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Yeh, have studied it a bit further, probably only worth doing if you've removed the whole engine / gearbox for other major work and you like a technical challenge.
I did say "fairly straight forward" on the brake swop by which I mean its all external work and entails a fairly logical path to achieve particularly with the array of master cylinder choices now available although the bike I saw used a handlebar master cylinder as the basis thus keeping it all original parts. Still, interesting stuff but I'll give it a miss and concentrate on getting the original set up to work to the best it can. Thanks.

Re: T160 Right Hand Gearchange
SJS #784667 09/18/19 10:52 am
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You could do that or use a T150V rear wheel and brake setup - ie go conical not disc. Then the rear brake conversion would be almost bolt on parts.

Re: T160 Right Hand Gearchange
SJS #784677 09/18/19 2:12 pm
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You could leave the cross shaft in place to plug the internal holes. Remove the cross shaft link and change the gearshift fork on the gearbox quadrant to the earlier T150. Make a new cover for it to go through. On the primary remove the gearshift spindle and then plug the hole.
If you go with rear sets the rear master and pedal mounting is probably easier.

Re: T160 Right Hand Gearchange
SJS #784709 09/18/19 7:37 pm
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I wouldn't bother unless it was for medical reasons.
I have left foot up for up on my Suzuki, Kawasaki and Aprilia
Right foot up for up on my BSA, and OK Supremes and Greeves
Right foot down for up on a Greeves
Left hand trigger to change up on Jawa, reach down and pull lever up to change down again. (2 speed Bewley)
Left thumb button to change up right foot to change down on GM500

No problems, no mis shifting

Last edited by Andy Higham; 09/18/19 7:38 pm.

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Re: T160 Right Hand Gearchange
SJS #784714 09/18/19 8:02 pm
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Originally Posted by SJS
Still, interesting stuff but I'll give it a miss and concentrate on getting the original set up to work to the best it can.


I'd say my T160's gearchange was actually pretty good compared to some other bikes. Each gear (and neutral) can be selected either up or down easily using one finger, with no sloppiness or false neutrals so if yours isn't then there has to be something wrong with it.

Re: T160 Right Hand Gearchange
SJS #784740 09/19/19 1:53 am
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In terms of the quality of the gear change I cannot really sense any difference between my T160s and my T150s.
So a properly installed and adjusted standard gear change on a T160 should give a very acceptable quality of gear change.
HTH

Re: T160 Right Hand Gearchange
SJS #784996 09/21/19 9:33 pm
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Just caught up with this thread - my comment, for the little it's worth, is that T160 gearchanges are absolutely fine as they are. Ever ridden a 1970s / 1980s Japanese or Italian or German bike?


If anything other than a blank space is visible here, something's wrong.
Re: T160 Right Hand Gearchange
Tigernuts #785163 09/23/19 3:02 am
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Originally Posted by Tigernuts
Just caught up with this thread - my comment, for the little it's worth, is that T160 gearchanges are absolutely fine as they are. Ever ridden a 1970s / 1980s Japanese or Italian or German bike?


I get that. My BMW shifts like a bike with a loose chain, totally screws up your attitude in corners.
However, one of the reasons I heard given for replacing the Trident box used on the early Norton rotary bikes was that the racers complained that they couldn't shift smoothly without using the clutch. I wondered about this because, if anything, my T150 shifts better without the clutch. Then I realized that they were using the T160 set up.
I've only ridden a T160 once, but the crossover does make a difference.


Stepping on others doesn't make you stand tall.

71 A65L "Zelda"
92 BMW K100rs "Gustav"
72 T120V cafe project "Mr. Jim"
72 T150V "Wotan"

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