I asked Trek that question a month ago. There answer was 28's are okay, but tight and forget fenders. I believe the issue is the rear brake caliper is the tight zone. I'm running 25's on mine, and they measure just shy of 26 mm wide @ 115 psi on the rear.

 

@ 115 psi on the rear.

how much do you weigh if you don't mind me asking - that's a lot of air pressure - I run 95 rear at 185 in my 25mm tires and some would say that's a bit high.

 

200 lbs - total weight me + bike + gear + bottles ~ 223.

The ref I use for a starting point puts my target inflation ~ 110-115 for the rear at 55-60% weight on the rear (123 - 134 lbs). By trial and error, 115 psi on a 700x25 tire feels right to me. I inflate the front to 95 psi.

 

What size tire can you put on the Domane Disc? It looks like Massive Clearance - 32 or 35mm?

 

The chain stay width near the tire doesn't change between canto and disc brakes. So, a 28.

 

Trek Domane Disc can go up to 30mm..

Trek Domane Disc 6.9 long-term review

I run 25mm tubeless on mine.

 

Well, when I get around to building up some Hed Belgium+ rims for the bike it'll be interesting to see what I can put on there. 25mm rims and 28mm tires would be the dream, because my Domane gets a lot of the adventurous stuff that my other bikes don't see.

Anyone else put 28c tires on theirs?

 

It's been done.

 

I was going to post, but that link is me posting. LoL. I am still running my 28c Gators and still loving them.

 

I am currently running 32 on the front and 28 on the back of a 6 series frame. Both are Bontrager AW 2s, mounted on Aeolus 3 rims. I haven't tried a 32 on the back yet but it looks like it will be a close call. Brake calipers are not an issue at all--SRAM hydro rim brakes.

 

@Tigat wow! Would you mind posting photos of those tires installed on your Domane? A 32C tire up front is by far the largest I've heard of on the Domane, and I'd love to see it.

 

Wow! That 32 on the front looks like a very tight fit.

 

You're right. In the picture it does, but the wheel goes on and off pretty easy, clears the brake pads, and has never rubbed. Actually, this set-up has a bit more clearance than trying to run 25s on my Bianchi 928.

The recommendation to try this combo came from a very solid source. I'm about 3 mos. into the experiment, have seen a fair bit of gravel, rain and even some snow, and will probably ride them through the winter at least. If nothing else, dropping down to a light and skinny racing slick will give me a psychological boost for spring climbing season.

 

I am running Conti GP4000s 28mm on my Domane 4.5 Disc. They actually measure about 31mm on the stock rims. At 90psi they are a fantastic smooth and fast tyre for this bike on rough roads. I did about 5000km on a set of Bontrager AW3's also in 28mm. They were good but the GP4000 's are better. It's a much larger tire despite them both being 28mm. I doubt they would fit a rim brake model. They are a very good match for this bike.

 

I tried to get 28s (Conti 4000 GPII) on my Domane 5.2. The front Ultegra brakes would not accommodate them. I went back to the Bontragers and have some Vittoria Paves (also 25s) for when the Bdontragers give up the ghost.

 

I posted a thread as well but has anyone got 28's to work with fenders on a Domane Disc ?

 

Depends what rim, tire and year of Domane you are running.

 

Agree. 17 Domane SLR 6 disc. I like 28 and 32. Mostly running 28 Conti 4000 II on the stock al rims. Came with 32 Bontrager tires. I put them aside for now. Carbon rim set has 28 Schwab Pro on them. Plenty of room. 40's might not work but I haven't tried it yet. Winter I plan on swapping out some hub caps and trying a set of rims with 40'.

 

No problem running WTB Exposure 30mm (tubeless) on my Trek Domane 6.9 Disc. Looks like I have clearance for a 32mm.

 

Cheers mate. Anyone with a non disc Domane? What year model and what tires fitted it?

#thanks

 

I have a 2013 Domane 5.2 no disc and I run 28 Gatorskins...love it