Michelin Pro4 Service Course

caedev

I'm looking to get hold of some new tires for my Specialized Allez. I'm running Fulcrum Racing 5's and looking for a 25mm tire as the roads where I cycle are pretty poor quality.

I don't want to spend any more than £45 for the pair so was thinking of getting the Pro4 Service Course 25mm. I was about to buy when I noticed a review which said they are nearer to 28mm and may give clearance problems. Anyone have any experience of this?

Should I be considering anything else?

DiscoBoy

Yes they size up big. Not only in width, but also height. Here is my size info for 23mm and 25mm pro4s fitted to my RS80 C50s:

23MM PRO4 SC WIDTH (100PSI) (mm) 23.44 23.92 23.97 23.74 23.51 23.65 23.76 23.80
23MM rim+tyre height (mm) 72.00 71.74 71.80 71.98

25MM PRO4 SC WIDTH (100PSI) (mm) 26.69 26.91 27.22 27.21 26.81
25MM rim+tyre height (mm) 75.38 75.53 75.54 76.07

Measurements were taken at random intervals around the rim.

As you can see, the 25mm version are a little over 3mm wider, and about 4mm higher than the 23mm.

Sizing up large is not uncommon across brands, though.

Also consider the continental GP4000S and the vredstein fortezza tricomp. I don't know how they size, though.

Grill

They're just over 27mm.

bendertherobot

They do come up large. They are also quite quite excellent. They should fit though you won't be running cruds with them.