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Topic summary

Posted by CDNRatMan
 - August 31, 2016, 14:59:16 PM

   I was married for fifteen years so I am well versed in disappointment.

But I am really interested in what you will think of this small change to the bike and what you find. So be interested in a write up after your trip. 

Posted by OR Seedman
 - August 31, 2016, 14:51:55 PM

I run around 70 mph when I use the freeway going to my research farm...and it is a little buzzy at that speed..most of the time I take back roads and run 55-60 mph...looking forward to seeing the difference ...and yes, I do find that since shifting up gears is so "automatic" that I will try for "6th" occasionally...only to be disappointed   :'(

Posted by CDNRatMan
 - August 30, 2016, 23:20:35 PM

 If you do not notice a change for the better then send a note to GB and he will refund your monies because he talked me into doing the change and I really like it.  ::)

I am sure you will notice a difference and it should be for the better, you will not be hunting for that 6th gear. 55-60 mph = 88-96 kph is nothing on my bike, I have found the sweet speed for my machine at the gearing I have is around 75 mph, seems to run really good there and can run there all day.

Posted by OR Seedman
 - August 30, 2016, 21:59:23 PM

spent 20 minutes this afternoon changing out my front sprocket to 18T.  just lifted the rear tire, loosened the rear axle and pushed the whole assembly forward to get enough slack in the chain to pull the front sprocket slip the new one on with the chain in place.  I have an electric impact wrench which made it go quick (luckily I had a 27mm impact socket as well).  waxed the chain while I had it exposed, too.  Going on a day ride to the coast Thursday with a buddy and his new Harley street glide...looking forward to seeing the difference with the new front sprocket at 55-60 mph

Posted by OR Seedman
 - August 28, 2016, 10:57:06 AM

thanks for the chain info.  I have a full machine shop at my research farm and I use lots of chain driven equipment, so shorting a stock chain by one link will not be an issue...the pics are good because I like to know ahead of time what I am getting into before I tear something apart....

Posted by CDNRatMan
 - August 28, 2016, 09:07:39 AM

I went with the stock chain, and sorry can not remember but I think I had to shorten it by one link, if I remember right I bought the stock because the length I wanted was not normal so it was easier to just take the one link out. I will be doing new chain and sprockets this winter also.
Thanks for the compliment and hope the pictures do help both of you.....it is really not that hard. Also a great time to lube the bearings and like I said to check the rubber dampeners.

Posted by pietperson
 - August 28, 2016, 09:05:21 AM

Thank you so much for the pictures. This will make the job much easier and faster. The illustrations were fantastic!

Posted by OR Seedman
 - August 28, 2016, 08:46:20 AM

Excellent pictures and descriptions, Ratman! I will be changing out my 17/40 to 18/38 this winter after riding season is over here.  I would like to know if I still use the stock chain length (112) or do I need to get one shorter by a link or two?  Thanks for any input...

Posted by CDNRatMan
 - August 27, 2016, 19:52:15 PM

rear sprocket

Posted by CDNRatMan
 - August 27, 2016, 19:50:23 PM

and the end....

Posted by CDNRatMan
 - August 27, 2016, 19:48:02 PM

 Can not find any but I did a short one on the front sprocket. You will need an impact gun or a long power bar for the front. Should take about 45 mins to swap out the sprocket itself. Cleaning the area will take longer.
You need to remove the sprocket cover held with a 10 mm bolt. Take off the cover, there is a lock washed that needs to be hammered out of the way. If it is not been used more then twice it is still good to go. Need to lock the rear tire with the brake on and loosen the nut holding the drive sprocket on and just remove it.When replacing the nut torque to 84 ft lbs and then bend a new section of the washer or replace it with a new one for the cost.
Rear sprocket is not so much other then the tire has to come off, so seat off, fender off and then remove the wheel, then the bolts holding the sprocket on are removed, new sprocket is put on with the # of teeth facing outwards, I used a wee bit of blue lock tite, and tighten them to torque specs, 54 ft lbs.
this is also a good time to check the rubber dampeners in the rear wheel assembly.
here are some pictures to see what I was talking about....

Posted by pietperson
 - August 27, 2016, 19:17:50 PM

Are the steps to change the chain and sprokets on here anywhere? I can figure it out by myself if necessary but if the steps are written down somewhere to make it easier that would be helpful. You know, less chance of inventing the wheel again.
pietperson

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