Bicycle Mechanics - Origin8 Chain Deflector Size? or Chain deflector help

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grall1126

05-09-11, 04:20 AM

I was thinking of purchasing one of these chain deflectors. However, they come in a bunch of different sizes.

1 1/8
31.8
34.9

https://store.nexternal.com/icycles/storefront/chain-guides-c1870.aspx

I thought maybe the sizes are for the seat tube circumference? My Litespeed circ is 115mm, not sure which one to buy? Or do you suggest a different model?

dabac

05-09-11, 05:57 AM

I was thinking of purchasing one of these chain deflectors. However, they come in a bunch of different sizes.

...I thought maybe the sizes are for the seat tube circumference?
Kinda, but not quite. It's seat tube diameter.

... My Litespeed circ is 115mm, not sure which one to buy?

Well if you do the math 115 mm circumference is about 36.6 mm diameter. You may want to check your measurements, or get one that is quite flexible WRT size.