Chain & sprockets

[D-Rider]

OK, two more things that I'd like to know on this - the ratios are essentially the same, so in terms of changing gearing, either set chosen will give a similar effect. Question is:

• - would the increased bend radius make a significant difference in chain wear due to increased strain (when using 15t)?
  - using a 15/41 combo means you can use the same length chain (IIRC), is this the case for 16/44?

First question - well I can't answer for certain but the differences seem minor to me. I would think good chain maintenance is likely to have a bigger effect on chain life.

Second question - standard =16:41 .... so 15:41 requires 1 link less and 16:44 requires 3 links more than standard. You have a bit of room to play with in the swingarm adjustment and I know that 15:41 can be accommodated on Falco and Mille swingers with a standard chain.
I'd guess that you'd probably need a longer chain to cope with the 16:44 ... but I've never tried that combo so I don't now for certain.

[HowardQ]

As I commented earlier, you need a longer Mille chain to cope with a
16 : 42, just one extra tooth on the back!

[Fausto]

While noting all the above comments I would just say this...

The simplest and cheapest gearing mod. is to drop down to a 15 t front sprocket.

I did this almost as soon as I got mine and have done over 10k and a trip to Europe with no problems (Touch wood!) The chain did not need shortening and has shown no obvious signs of increased wear. In fact I believe it to be the original chain and rear sprocket. (17k)

It is unavoidable that there will be increased wear on the front sprocket due to there being fewer teeth to share the load but once again nothing obvious.

Give it a go - it seems to be a fairly universal early mod according to the forums.

[Peter Grange]

Well thanks for all the info.

It looks like a 15t front will do as I have a new 41t rear that came with the bike.


Peter