Weather can change so I'll be taking a gravel tire to Stillwater too, but....
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\nThe forecast is showing very little to no rain for the week leading up to Landrun. I've never done the race but it always looks like the roads are just smooth clay for the most part when dry.
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\nThis has me considering running Clement Strada LLG 28s. They do have an ever so slight file pattern, not completely smooth.
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\nGood idea or would it make for a long day? I'm only doing the 50 mile route, btw.
I haven't done Land Run's so this is kind of a guess. I did ride the Dirty Pecan in FL. last weekend that was all clay and have done 3 other gravel races.
There are 2 things to consider.
1. Are you going to race or are you going there to have fun and enjoy the ride? 2. You didn't mention your weight.
On the Pony Express ride which was more flint I saw riders that were trying to ride fast and were riding say 28-32 mm tires. There were the ones having flats.
On the Dirty Pecan last weekend same thing only riders were trying to ride roadie bikes with say 28mm tires. Most of the people I saw having flats(10+ in the first 20 miles) were running the skinny tires they also were probably over 185 lbs. If you are a lighter rider you might be able to get away with it. I am at 200 lb right now so yes I run the 40 mm tire. You are asking if it would make a long day at my end I would run a 32 or 36 mm tire if I was you and then you wouldn't have to worry about flats which for me would make a long day. The 36 mm also gives you a fall back just in case they would have rain.
Good luck have fun and I hope you have better weather than they did last year.
I did it last year in the mud and I think skinny tires help shed the mud but even if dry I wouldn't run a slick. There are to many 35+ mph descents with small bridges, ruts, and sharp turns at the bottom of them. Also a portion of the 100 mile route goes through private land with double track that is very rough, not sure if the 50 does or not.
I'm going with my normal tires, 40c Maxxis Ramblers. The fastest guys there (if dry) will be running a Panaracer Gravel King SK 40c.
I wouldn't bother IMHO, LR100 is to much fun to worry about it.
I set up my Cutthroat last night with a 38/40mm Vittoria Terreno Wet in the back and a 35mm Gravelking SK Mud in the front. These are mounted on 26i Enve M60 HV's and I didn't measure the mounted width yet. So, I'm still running as if it's a "mud" year and I don't plan to change if it stays dry (fingers crossed!). Not sure if I'd go down to 28mm even if it was dusty dry. I think I'd run something closer to 40mm, so I could go lower pressure for comfort and still have ample clearance for anything a "normal" gravel course would have. Just my $0.02
I ended up using a 42mm WTB Resolute in the front and kept the Terreno Wet in the back. It was a dry dusty LandRun; but I still wouldn't have gone with 28's on that course (although you could have).