40 tooth sprocket and chain length

2402 Views 14 Replies 9 Participants Last post by TLR Tim, Feb 12, 2014

stu_m

Discussion Starter · Feb 11, 2014

so got all my bike back together today after fitting a R swinger to it

its a 97 S by the way

as part of the fettling process I was also fitting a 40 tooth rear sprocket I have heard that this is the limit for the chain length before you need to start putting a longer chain on!!

well not so for me! the chain was like a bow string!!

so its back on with the old 38 tooth sprocket for now as I'm not paying for a chain as its only done about 2k!

do you think swapping the front to a 16 tooth sprocket would give me enough slack to allow a 16 40 combination!

1 - 15 of 15 Posts

Hursty46

· #2 · Feb 11, 2014

Have a read here on this gearing calculator

http://www.mrspecialties.com/_howto/_drive/gearingCalc.htm#gearingCalculator

stu_m

Discussion Starter · #3 · Feb 11, 2014

but thats not going to tell me if a 16 40 combo will allow me to use a 104 link chain

Jonstorp

· #4 · Feb 12, 2014

I just fitted 17/40 and was told by my suzukidealer to get a 106 chain.. To get about 40 mm slack (when on rear paddockstand) i had to adjust the rear blocks so five markings are showing.. Dont know if this helps..

Edit:
But i dont have a R-swinger... So all this info may be worthless..

Bill R

· #5 · Feb 12, 2014

stu_m said:
but thats not going to tell me if a 16 40 combo will allow me to use a 104 link chain

On Sam's sprocket ratios (TL1000S) chart, 16 / 40 104 links.

Double Trouble - Two Black 98 TLSs
Full Yosh RS3 stainless C/f cans, Ohlins/Bitubo SOAS 850lb spring, Ohlins damper/Race Tech Gold valves & 1kg springs/7.5wt oil, Brembo 19RCS/ZX750RR 96-99 Nissin 6 pots/Earls SS lines, air box mod/TLR bell mouths & tank oil return, PAIRed, Flashed, Rifleman's 1/5, Matt's TRE-3, 17-39 sprockets, Sam's GXSR /STM slipper, V2 RHA, Marvic rims.

M4 headers/Yosh Ti cans, Traxxion 05-R1 shock conversion/Bitubo SOAS 850lb spring/Ziggy's RHA, Attack Racing adjustable triples/Ohlins R&T FG838 forks/Ohlins damper, Brembo 19RCS/ZX750RR 96-99 Nissin 6 pots/rear GXSR 1K 01-02 Nissin caliper/Earls SS lines/Galfer wave rotors, Sam's GXSR/STM slipper clutch/Factory Pro shift kit, air box mod/TLR BM & TOR, PAIRed, Rifleman's 1/5, Matt's TRE-3, PVM 6 spoke rims/190-55/Gilles adjusters/Renthal 17-40 sprockets, + some Titanium, Ring in & Van bits....

Track Bike - 01 Aprilia RSV Mille R/RR - 08 Motor, 1102 Big Bore kit.

rxf610

· #6 · Feb 12, 2014

Jonstorp said:
I just fitted 17/40 and was told by my suzukidealer to get a 106 chain.. To get about 40 mm slack (when on rear paddockstand) i had to adjust the rear blocks so five markings are showing.. Dont know if this helps..

Edit:
But i dont have a R-swinger... So all this info may be worthless..

I'll throw out useless info like Jonstorp. :rotfl

I'll back you though buddy! Does the swinger affect chain slack? ???

Same frame mounting location. Is it the same length? I know the brake bar has to be swapped ( I assumed because of clearance not length) so maybe it's different. So question is: does changing the arm change the wheelbase?

:cheers I'm drinking beers watching the Olympics so my posts tonight might not make sense!

tlsgazza

· #7 · Feb 12, 2014

It must be the swinging arm, mine and the missus's S's have been running 17/40 for years with 104 chain length.

stu_m

Discussion Starter · #8 · Feb 12, 2014

Hmmm odd! The R swingarm is supposed to be the same length as the S

With the 38 tooth sprocket I have the same amount of slack and spacing with the s arm!

stu_m

Discussion Starter · #9 · Feb 12, 2014

Bill R said:
On Sam's sprocket ratios (TL1000S) chart, 16 / 40 104 links.

Where is this chart? Can't say I have seen it

762fmj

· #10 · Feb 12, 2014

stu_m said:
Where is this chart? Can't say I have seen it

That'll be the one that Hursty46 flagged up? Innit?

stu_m

Discussion Starter · #11 · Feb 12, 2014

I will look again!!

ianp

· #12 · Feb 12, 2014

i run a 16/41 on an R and the standard is 17/39 so by useing a 16 front you should be fine

Reactions: 1

TLR Tim

· #13 · Feb 12, 2014

stu_m said:
Where is this chart? Can't say I have seen it

See less See more

Reactions: 1

stu_m

Discussion Starter · #14 · Feb 12, 2014

thanks for that :thumbup

I think I will try the 16 front sprocket

TLR Tim

· #15 · Feb 12, 2014

stu_m said:
thanks for that :thumbup

I think I will try the 16 front sprocket

No problem glad to helo :thumbup

1 - 15 of 15 Posts

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