Steel Rear Sprockets

[Obleo]

I R : Have you noticed any increased noise or vibration from the 19 tooth front sprocket ?

[IndianRider_imp]

No not really as I didn’t test stock and aftermarket back to back for comparison. However I keep changing stock and aftermarket sprockets on my dual sport xt225 and since the stocker has that rubber impregnated in the front sprocket it a tad bit quieter than the other sprockets that don’t have the rubber. But no vibrations at all .

There must be some reason why the stocker has the rubber insert


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[Obleo]

I R : I was curious about the noise without the rubber ( bushing) . Would like others to chime in .

[jimgl3_imp]

I'm curious how DBM's "stocker" runs 70 at 3k rpm. Mine runs 62 like the engineering website says, 100kph is speed limit on Japanese highways. what brand and size tire you got on that thing?

[pekingduck]

DBM's 2014 is a 6-speed. My 2013 5-speed used to do 4000 rpm at 70 mph, the 19T front dropping it to about 3775, and adding a 37 tooth rear dropped it to 3600 rpm.

[IndianRider_imp]

DBM's 2014 is a 6-speed. My 2013 5-speed used to do 4000 rpm at 70 mph, the 19T front dropping it to about 3775, and adding a 37 tooth rear dropped it to 3600 rpm.

Sounds about right. I’m between 3500-3600 rpm at 70mph with the 19 front and 37 rear


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I R : I was curious about the noise without the rubber ( bushing) . Would like others to chime in .

On the dirt bike you can tell a very minor noise difference due to the lower speeds at 25-30mph and dirt helmet but no vibrations .. I doubt you can hear the noise difference on the CB at higher speeds with a full face helmet ..


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[jimgl3_imp]

all 2014 are 6 speed. they do 62 at 3k rpm. not 70, not stock, unless he's running a 140/90 rear tire, which would go about 67 to 68

[Obleo]

Question here: when doing the front drive sprocket replacement , do you need to bleed the clutch slave cylinder? Also how is the clutch lifter rod removed and reinstalled. Service manual doesn’t say. One more question , is it necessary to order a drive chain guide plate? I’ll probably grind it per previous instructions here. Thanks for your input here. Mark

[peterbaron]

No clutch bleeding. Rod, just pull it out (but no need) and reinsert (cleaned) it back again. When I had my T19 (for '13) installed, I ground down guide plate due to interference.

Links, PD special

http://cb1100forum.com/forum/showthread....t=19+tooth

http://cb1100forum.com/forum/showthread....t+sprocket

[Obleo]

Well just ordered sprocket and chain guide plate. I’ll follow up with my impressions, thanks for your help.