number of chain links ?

[paso750]

Hi,

I recently looked through a fitting chart from REGINA chains and got confused. It says:

750 Paso 87
15-38-106 (530)

750 Paso 88-90
15-38-110 (520)

906 Paso 89
15-40-108 (520)

906 Paso 90-93
15-38-106 (520)

907i.e. 90-91
15-40-108 (520)

907i.e. 92
15-40-108 (520) but with a different order number

Now I guess there must be some things wrong here. I can understand that with a 40 tooth sprocket a chain is used that is 2 links longer, but I`m wondering that the 907ie uses the same chain length as a 906 although it has a longer swingarm and I also think the data regarding the P750 is mixed up.
What`s the correct chain length for a P750 (520 chain) and a 907ie ?

G.

[Finnpaso]

I never look so closely those tables, cause there are near allways mistakes in them. I use normally much bigger in rear in my 907, so allways, when need new chain, i count, how long chain i have and i check, in what position is that adjustment in swingarm.... "its in brains, not in tables"

btw, if u need to know my combination, i count and tell it to You....

[paso750]

I do still have the old chain of my bike so I can check that myself, but could you check the length of the 907ie chain ? Thx.

G.

[Finnpaso]

Just from sauna, so very tired after , but tomorrow i let u know my sprockets/chain lenght.... But i use big rear sprocket in my 907!!!! I dont need top speed, but i want hard acceleration and good gearbox ratios in twisty roads...

[Finnpaso]

I use this combo in my 907IE:

Front: 15 (original)
Rear: 46 (!!!)
Chain: 112 links

And adjusting in swingarm is in "quite front position", so there is free play still alot for tighten chain, when it gets older.