[MENTION=252435]RubeRad[/MENTION]

Here he is! I pop in when summoned.

Mine's the 2006 Portland, same frame (and color) as the 2007.

No, I dumped those old wheels a long time ago.

Yes, I had a new set built using the Velocity Road Disc hub back when they made it in 130mm. Nice effing hub.

Whatever you do, ditch the paired spokes. As [MENTION=96703]blakcloud[/MENTION] mentioned above, those wheels were not Trek's finest moment. Which is putting it gently.

I've been meaning to experiment with a 135 hub, but until recently didn't have a 135 wheel to try. I have to take the tire off that wheel because it's a 27.5" x 2.2" MTB tire, so I haven't gotten around to messing with it yet.

What has me thinking about it is that there's quite a bit of slack between my hub and dropout when I put the wheel in. As I tighten the skewer (I use bolt-ons), I can watch the rear triangle squeeze up. Makes me wonder if it would also spread a little. I'd need only one mm per side or two mms, not the whole five. And with the Portland's long chainstays, chainline shouldn't be a problem. Might have to tweak the rear RD a hair. Maybe.

You may recall that when Surly came out with the CrossCheck, they made a big noise about how the rear end was 132.5 and would fit either 130 or 135. I've measured my Portland at 133mm. I'm thinking the same thing would work.

It's something that's worth a try if you have a local wheelbuilder or LBS is up for an experiment, or you have an MTB wheel kicking around or can borrow one.

The Portland is a fine ride that should not have to be parked for a stinking 2.5 mm per side.

For those who know me and are reading between the lines, yes, I bought an MTB.

Back in February, for a friend moving here, I picked up a second-hand 2016 Giant Talon 4, 27.5", hydro disc brakes. Had to ride it home in the snow from where I got it. He wasn't scheduled to move here for a while, so I used it to commute for most of March, including that big newsmaking 28" snowstorm we had.

Turns out, I liked it in the snow. A lot. So I bought an NOS one exactly like it. That'll become my new winter commuter and my beloved Portland won't have to wear its concrete overshoes (read: Nokian studded snow tires) any more. Although it will still get winter service on road tire days.

My Talon's kitted out a little differently than my friend's. He wanted the off-road look, I like full fenders. And I went with narrower "urban" bars and dynamo lighting system, where he kept the wide bars and is using one of my old MagicShine systems. I picked up a pre-built 650b dynamo wheel at bike-24.de for about $60. 27.5 is the same as 650b. Works a charm and for the under 500 miles a year I expect to put on it, it's wasn't worth a custom wheel.

Anyway, back to the OP, see if a 135 will fit. I really thing so. I just haven’t gotten around to trying it myself.