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Warning, potentially (really) dumb chain question ahead.

4K views 8 replies 6 participants last post by  Geoff PD 
#1 ·
Greetings all, I'm a new owner of a 2018 GS (YEAH!). I've noticed that the chain rests on and makes contact with the hard rubber (?) cylinder attachment directly above the kick stand. I was expecting a free flow contactless path for the chain.

Question: Is the the design of the bike? Is this normal? If so, why does the chain run in contact with this part?

Thanks, and happy to be here!

Scott
 
#4 ·
@G0MYW, thanks I assumed it was supposed to be there. The amount of tension/friction on this part makes it a prime candidate for replacement in the not-to-distant future I suppose. I've seen guides on other bikes that seem less involved than this design.

@Bas310 thanks good to be here. I picked up a 2018 GS over the weekend with 1,000 miles and just getting to know the bike after an extended motorcycle hiatus.

Seems like a good fit for my needs out here in California wine country.

I need to get the clutch/levers dialed in better and would like to find a center stand if available. After getting to know the bike better, I'll re-evaluate and see what's next!
 
#6 ·
On the topic of chains and in particular the tension, I (and a few other of my biking buddies) are horrified when you first see this bike of just how slack the chain looks!
So my first question is:- Is this amount of slack (40 to 50mm) normal in a bike with a long travel suspension. I recall my VStrom only having about 25mm of slack, and similar with my VFR.
And as regards the measurement.... I always assumed that you measure the slack from top of chain to top of chain, but in a YouTube video, the presenter measured from top of chain to bottom of chain! So which is correct????
Technically speaking, if you’re measuring top to bottom, if a chain is for example 8mm thick, then even if the chain was as tight as a guitar string, it would have 8mm ‘slackness’ which is ridiculous!
So.... which is correct?


Sent from my iPhone using Tapatalk
 
#7 ·
Strictly speaking centre to centre is correct but, for all the fractional difference, top to top or bottom to bottom will do. I don't mess about with rulers but make a gauge out of cardboard or plastic to measure between top and bottom so, in the case you quote, the gauge at its smallest would be 40 plus 8 and at its largest 50 plus 8.


I'll attach a photo later.
 
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