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CBR 1000F "Hurricane" 1987-1996 CBR 1000F

its me again, 17/ 42 gearing

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Old 09-10-2008, 09:05 PM
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Default its me again, 17/ 42 gearing
hey all, im pretty sure my 95 has 17/42 gearing, i would like to lower the gearing a little bit, but not to much, is the 16/45 the next lower or is there somthing in between? and do i have to change both or can i just change the rear sprocket? thanks
 
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Old 09-10-2008, 09:08 PM
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Default RE: its me again, 17/ 42 gearing
Try a search- been discussed before.
 
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Old 09-10-2008, 11:39 PM
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Default RE: its me again, 17/ 42 gearing
Reduction of 1 tooth on the front will push the power up around 7%. +3 teeth on the rear will do the same, more or less. 16/42 is pretty good and won't hurt your wallet too badly, fuel and tyres wise. I think 16/45 is a bit radical.
Just my 2c worth.
 
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Old 09-11-2008, 09:52 AM
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Default RE: its me again, 17/ 42 gearing
If you fit a 15 to the front you need shim it out around 1.5 mm to clear the chain on the case,and remove the same on the out side so it will tighten up.(On a lathe )
 
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Old 09-11-2008, 12:30 PM
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Default RE: its me again, 17/ 42 gearing
ORIGINAL: fast1000f

hey all, im pretty sure my 95 has 17/42 gearing, i would like to lower the gearing a little bit, but not to much, is the 16/45 the next lower or is there somthing in between? and do i have to change both or can i just change the rear sprocket? thanks
Just remember that the speedometer is driven off of the rear sprocket nut and will be effected by any change.
 
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Old 09-12-2008, 06:00 PM
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Default RE: its me again, 17/ 42 gearing
if i do change my gearing is there anything i can do to adjust my speedo to read correctly? and where is a good place to order my sprockets? will i have to go to a differant link chain or will the adjustment on the rear tire be enough? thanks all
 
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Old 09-12-2008, 11:55 PM
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Default RE: its me again, 17/ 42 gearing
Speedo's not adjustable
Changes to the sprockets will depend what ratios you use - 15/45 should be OK (JUST) with a std chain.

 
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Old 09-14-2008, 12:45 AM
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Default RE: its me again, 17/ 42 gearing
Speedo is driven from the shaft, so if you go 16/42 then you will be travelling slower than your speedo reports - just mentally adjust - get someone to pace you so you are aware of the difference on the speedo with your new sprocket set up.
 
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Old 09-14-2008, 12:35 PM
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Default RE: its me again, 17/ 42 gearing
think i will just try a 16 in the front for now, see how i like that. didnt see anything on ebay, got any ideas, do you have anything shadow?
 
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Old 09-14-2008, 11:57 PM
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Default RE: its me again, 17/ 42 gearing
Nope, sorry, only spare sprocket I have is a 15.
You can buy sprockets from the Honda dealership, or look for sprocket sets on e-Bay.
Make sure you get the right part........
Maybe try www.mrcycles.com or www.wemoto.com or www.bikebandit.com
 
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