Platy chain interference with VO 63mm fenders

[Tom Wyland]

Hi, I have a Platy with freshly-installed 62mm fenders. I have the Riv 38/24 crankset and the chain interferes with the fender on the small chainring. Does anyone have photos of their fender trimming job they would be willing to share? Or perhaps the number of mm you removed?  I'm trying to reduce the trail and error a bit.

I've only worked with SKS fenders before and these VO fenders were easier than I thought to install. I did invest in a spring-loaded punch to help with drilling. Well, I guess I'm not quite done yet.

Thanks!

Tom

Reston, VA

[DavidP]

Hi Tom - I'm afraid I can't be much help as I did not trim the VO 63mm fenders on my Platypus. I'm running a VO 30/46 crank on a 118mm BB, but I think the most relevant factor is that I'm using a 7 speed cassette which gives a bit more chain clearance. I don't get chain to fender contact during normal riding when in the small ring but on bumpy trails I sometimes hear some clattering due to chain bouncing on the fender.

The rear fender was crimped as provided - I flattened out the crimp to maximize tire clearance with 50mm tires which reduced the chain clearance a bit. Did you modify the crimped area? I wonder if simply trimming out the crimped area would give clearance for both the chain and tire.

Here's the clearance I have in the small front, large back combination and what my reduced fender crimp looks like:


-Dave

[Tom Wyland]

Ah Ha. Mine was crimped but I thought it was shipping damage so I un-crimped it before it was installed.  It looked like more of a dent than a crimp. I don't think it will provide enough clearance but maybe I'll try there first. I'm running a 9 speed cassette.