My bike is virtually identical to yours (Specialized Alley Elite) with 700c x 28 tyres and I have the same mud guards fitted.
I found that there is another way to adjust these to get them fitting perfect.
The bridging point where the stays goes over the guard allows them to slide along adding that bit more of an adjustment..I had issues with the guards rattling up against the rear brake caliper.Sliding the guards slightly through the bridging point solved it.Ive done around 200 miles on them in the last couple of weeks through some really mucky lanes and they've been absolutely brilliant.The best winter accessory buy you can get in my opinion
I found that there is another way to adjust these to get them fitting perfect.
The bridging point where the stays goes over the guard allows them to slide along adding that bit more of an adjustment..I had issues with the guards rattling up against the rear brake caliper.Sliding the guards slightly through the bridging point solved it.Ive done around 200 miles on them in the last couple of weeks through some really mucky lanes and they've been absolutely brilliant.The best winter accessory buy you can get in my opinion