'99 M Dark new owner-general spec questions

[memper]

Hello,
I am going to be the proud owner of a Duc. It is in near mint condition except for the chain. I'm getting the EK SRX sealed X ring. I read somewhere that when changing the chain one should change the sprockets as well. This true? It will be my first chain driven bike. If so what are some recommended decent grade sprockets out there? How do I know they need replacing?
And one other question, does my bike have 50mm forks?

Thanks in advance

M

[Ddan]

It's a good idea to replace the sprockets with the chain.  If the chain is worn, there is likely the same amount of wear in the sprockets and putting a new chain onto the old sprockets will just accelerate the wear on the new chain.  CA Cycleworks (a sponsor) has a pretty good selection of sprockets and a chart for some alternate gearing

[The Bearded Duc]

It's a good idea to replace the sprockets with the chain.  If the chain is worn, there is likely the same amount of wear in the sprockets and putting a new chain onto the old sprockets will just accelerate the wear on the new chain.  CA Cycleworks (a sponsor) has a pretty good selection of sprockets and a chart for some alternate gearing

^
This

It's recommended to replace both sprockets and chain at the same time. I use the Supersprox line of sprockets from CA-Cycleworks and have been extremely happy! 


And unless your forks have been upgraded to SBK forks then, yes, they are 50mm at the top triple.

[MotoPsycho]

Going off of the gearing chart and the general concensus, the most popular thing to do is drop 1 tooth on the front sprocket. I didn't want to go that route due to riding on the highway a lot. I went +2 in the back and found a happy medium for me and another 5mph top end. Right at full speed with the old sprocket my bike would flood for some stupid reason. Changing that rear sprocket cured it.

[memper]

Thanks for the info folks. Much appreciated. Whats the stock tooth count F/R?

[JoeP]

Thanks for the info folks. Much appreciated. Whats the stock tooth count F/R?

Go here to find out: http://www.gearingcommander.com/

It's a great place to work out what your *new* gearing will be.

[The Bearded Duc]

Thanks for the info folks. Much appreciated. Whats the stock tooth count F/R?

15/41

IMHO, the 750 really benefits from a 14 tooth sprocket up front. You'll loose a little up top and gain about 500 more revs on the tach (which I know you don't have) but if you're not doing a lot of highway riding it's hardly noticeable.

[live2ride]

i have a 2000 750 dark.  i have 50mm forks.  i would assume you do too, but then again, there were a few changes between 99 and 00

[memper]

Thanks again folks. 

[memper]

So I just ordered a DiD kit with a 14 front and a 41 rear sprockets. Should I have gone the way of a 15 F and a larger rear? I recently read somewhere that going smaller on the front may increase wear. (perhaps I should have asked these questions BEFORE ordering). If I indeed have made an error there is a chance I can alter the order bc I placed it late last night.

[Howie]

So I just ordered a DiD kit with a 14 front and a 41 rear sprockets. Should I have gone the way of a 15 F and a larger rear? I recently read somewhere that going smaller on the front may increase wear. (perhaps I should have asked these questions BEFORE ordering). If I indeed have made an error there is a chance I can alter the order bc I placed it late last night.

In theory, increased wear.  Reality, insignificant, riding conditions and maintenance will mean a lot more.  Certainly not worth looking back.