Setting gear shift rod
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- benny
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Setting gear shift rod
Ok so I've had my rear sets back on and I'm not sure my gearshift feels correct. I think i like the angle of the footpeg but I'm trying to get my head round the mechanics of changing the angle length of the gear shift rod and angle of the lever (whilst keeping the pedal in the same position)
Now my thinking is if the lever is parallel to the line of the rod then the gear shift will be easier to move but require more movement, the further the lever is away from the parallel/vertical point the harder the pedal becomes but a shorter movement is needed.
Is this correct? How have people got there's set for race/track bikes? I'm using SES adjustable rear sets and just about to swap to GP shift. I can't remember what angle my lever is set but i know the pedal feels quite hard. This may just be compared to my agricultural road ER5 though.
Now my thinking is if the lever is parallel to the line of the rod then the gear shift will be easier to move but require more movement, the further the lever is away from the parallel/vertical point the harder the pedal becomes but a shorter movement is needed.
Is this correct? How have people got there's set for race/track bikes? I'm using SES adjustable rear sets and just about to swap to GP shift. I can't remember what angle my lever is set but i know the pedal feels quite hard. This may just be compared to my agricultural road ER5 though.
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- CMSMJ1
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Re: Setting gear shift rod
you need the dots to line up - one on the shaft and one on the knuckle.
If you cannot set that, you need a custom rod - so underboat96 (or the like) will do a nice ti one for fifteen quid :)
If you cannot set that, you need a custom rod - so underboat96 (or the like) will do a nice ti one for fifteen quid :)
IMPERATOR REX ANGLORUM
The V4 is the law..
NC30 - No9 - my old mate
The V4 is the law..
NC30 - No9 - my old mate
- benny
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Re: Setting gear shift rod
I didn't even notice dots! I'd it just turn 180 degree for gp shift?CMSMJ1 wrote:you need the dots to line up - one on the shaft and one on the knuckle.
If you cannot set that, you need a custom rod - so underboat96 (or the like) will do a nice ti one for fifteen quid :)
BRS Racing for up to date bike build and race results.
TT Zero for the electric Superbike build.
DM104 for the road race team.
TT Zero for the electric Superbike build.
DM104 for the road race team.
- CMSMJ1
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Re: Setting gear shift rod
Yup - exactly that mate
IMPERATOR REX ANGLORUM
The V4 is the law..
NC30 - No9 - my old mate
The V4 is the law..
NC30 - No9 - my old mate
- benny
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Re: Setting gear shift rod
Think I'm keeping road shift anyway. I'll look for these dots!CMSMJ1 wrote:Yup - exactly that mate
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- Tim400GB
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Re: Setting gear shift rod
As a rule of thumb I stick to a 90 degree angle between the arm and rod if there are no marks/none standard parts
Going back to your original post, I don't think the angle of the gear lever makes it easier or harder to change gear. This adjustment is for personal preference on where you want it to sit relative to your foot.
If you increased the length of the gear lever it would give more leverage and would require less angular movement to change gear.
Going back to your original post, I don't think the angle of the gear lever makes it easier or harder to change gear. This adjustment is for personal preference on where you want it to sit relative to your foot.
If you increased the length of the gear lever it would give more leverage and would require less angular movement to change gear.
Last edited by Tim400GB on Wed Feb 25, 2015 11:03 pm, edited 1 time in total.
- benny
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Re: Setting gear shift rod
Timon wrote:As a rule of thumb I stick to a 90 degree angle between the arm and rod if there are no marks/none standard parts
Look about right?CMSMJ1 wrote:you need the dots to line up - one on the shaft and one on the knuckle.
If you cannot set that, you need a custom rod - so underboat96 (or the like) will do a nice ti one for fifteen quid :)

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DM104 for the road race team.
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- Tim400GB
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- Cru Jones
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Re: Setting gear shift rod
I've seen people do that on the RC51 (SP1/2) before, but didn't think about doing it for the NC30/5. If only that worked for GP shift...
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