NC750 sprocket swap

[cdnuser]

Has anyone attempted to swap out the sprockets on the 700 for the ones from the 750?


Sent from my iPhone using Tapatalk

 

[pismocycleguy]

I put a 41 tooth rear sprocket on my 2012 NC700X in place of the 43 tooth sprocket.

 

[BerndM]

Why
Won't that tend to lug the engine quicker and cause more clutch wear on takeoff?
I doubt the 700 has the power to put that to good use.

 

[pismocycleguy]

Why
Won't that tend to lug the engine quicker and cause more clutch wear on takeoff?
I doubt the 700 has the power to put that to good use.

Why, because I hate having to shift to 2nd gear by the time I cross an intersection.
My 700 has plenty of power and I do not need to slip the clutch. Just turn the loud handle on the right side of the bars.
It sure is nice for gas mileage and a more relaxed engine at highway speed.
6th gear is now like overdrive.
Try it you may like it!

 

[CaptDL]

I plan on doing this when the chain needs replacing. Approx how far does it throw the speedo off? Odo?

 

[670cc]

I plan on doing this when the chain needs replacing. Approx how far does it throw the speedo off? Odo?

My guess is 2/43 or about 4.6%.

 

[Antarius]

You can see exactly what it will do for your bike and speed by checking Gearing Commander: Motorcycle Speed, RPM, Chain & Sprockets Calculator.

I will be running a 41T when I need a new chain in a few thousand miles also. I'd actually rather put a bigger front sprocket on but can't find one.

 

[CaptDL]

There's a pair of radar speed displays on either end of Saguaro Nat Park. They're dead on accurate to the speedo. Good way to check if you've got something similar close by.

 

[pismocycleguy]

Speedo Off?

I plan on doing this when the chain needs replacing. Approx how far does it throw the speedo off? Odo?

Using the handy dandy gear ratio/ chain length software it came out to a 5% reduction in the indicated speed. My bike's indicated speed before the conversion seemed to be a little fast when I checked using the speed limit radar signs in my neighborhood. After changing the sprocket the speed seems more accurate, maybe a little slower, using the same radar source. I haven't tested the real speed using my GPS yet.
I believe the speedo speed indicated is close enough for "government work". I'm not worried about a 1-3 mph variance from the true speed. I'll leave that to the police.

 

[pismocycleguy]

You can see exactly what it will do for your bike and speed by checking Gearing Commander: Motorcycle Speed, RPM, Chain & Sprockets Calculator.

I will be running a 41T when I need a new chain in a few thousand miles also. I'd actually rather put a bigger front sprocket on but can't find one.

Plus I don't think there is enough room for a larger front sprocket.

 

[CaptDL]

Sheriffs Dept and Police pretty cool around here. You gotta be on the deep side of stoopid to get noticed.

 

[Antarius]

Plus I don't think there is enough room for a larger front sprocket.

That very well may be the case.

I'll be going 41T rear soon for sure, and I'll grab a "Speedohealer" to adjust the speedometer.

**EDIT**

I won't be using a SpeedoHealer, according to their own calculator (which is reasonably accurate), the speedometer will only read 0.6% SLOW if you change the stock 43 tooth sprocket to a 41 tooth. That's not worth a "correction" for me.

(See here: http://www.healtech-electronics.com/ht_sh_online_calculator_en.swf)

FYI, for what its worth, a 41 tooth sprocket will yield about 3-4mph faster speeds (in 6th gear for instance) at the same RPM. I.E., 3750rpm will be approximately 70mph with a stock sprocket, or 73mph with the 41 tooth sprocket. For me the ~500rpm reduction at a given speed is worth the move to a 41 tooth, however worrying about the speedometer for a 0.6% correction is not.

 

[pismocycleguy]

**EDIT**
I won't be using a SpeedoHealer, according to their own calculator (which is reasonably accurate), the speedometer will only read 0.6% SLOW if you change the stock 43 tooth sprocket to a 41 tooth. That's not worth a "correction" for me.
FYI, for what its worth, a 41 tooth sprocket will yield about 3-4mph faster speeds (in 6th gear for instance) at the same RPM. I.E., 3750rpm will be approximately 70mph with a stock sprocket, or 73mph with the 41 tooth sprocket. For me the ~500rpm reduction at a given speed is worth the move to a 41 tooth, however worrying about the speedometer for a 0.6% correction is not.

That is also what I had determined. The less additions to the bike, the less electrical problems. Keep it Simple!
Plus, save yourself some money for real necessities.

 

[Alvinyansg]

I put a 41 tooth rear sprocket on my 2012 NC700X in place of the 43 tooth sprocket.

mind sharing the brand of the sprocket?
trying to source for a 41T rear sprocket.

 

[pismocycleguy]

41T Sprocket Brand

Alvin,
I purchased the sprocket from Sprocket Center in California.
Sprocket Center
Item #SL10509H Superlite 520 Steel Sprocket, Size 41T
It is all black in color.
I think it improves the functionality of the NC700X
Hope this helps.
PCG

mind sharing the brand of the sprocket?
trying to source for a 41T rear sprocket.

 

[Alvinyansg]

Alvin,
I purchased the sprocket from Sprocket Center in California.
Sprocket Center
Item #SL10509H Superlite 520 Steel Sprocket, Size 41T
It is all black in color.
I think it improves the functionality of the NC700X
Hope this helps.
PCG

thanks.
went in and they only have 43T onwards.