heymatthew

Actually just got the M13II's. I did look at some CR18's, but ended up with the 13's from Velomine because all the CR18's I found that were 700c had the hub set up for a multi-speed cassette (I think that's the right term, forgive me if it's not). All of the single speed 18's I found were 27" and I was worried that on the 700c SSCX frame I got, that the 27" wheels would be too large. I looked at Sheldon Brown's website and it looks like the 27" wheels are about 7mm bigger, which would cut into my overall tire size.

Or am I completely wrong on this?

franswa

Sun CR18 Black 700c 32h Fixed Gear Singlespeed Wheelset Black Black Sun rims high flange Formula fixed gear track hubs wheels wheelset [0072774711871] - $115.00 Velomine.com : Worldwide Bicycle Shop, fixed gear track bike wheelsets campagnolo super r

heymatthew

Oh... I didn't see those because I was looking for silver ones. I just saw the silver ones though and they were sold out anyway. Is there a reason you'd recommend the 18's over the 13's?

franswa

They're wider, which will allow bigger tires and a more comfortable ride with improved handling. Have they shipped yet? If not you can probably call them and ask if they happen to have any silver ones they could have machine built.

heymatthew

They haven't shipped yet. I just placed the order. I'll give them a call here in just a bit and see if they can swap me for the 18's. Even if I have to wait on them. For what it's worth, though, I'd probably only go up to a 700c x 35 tire at the most so I think the 13's should be fine. I'll call VM and see what they say. Thanks!

Mumonkan

+1 for cr18's, theyre even wider than A23's which give you more volume in your tires for more cush and traction

theyre also bomb proof as ive done thousands of miles on the set i have in every weather and temperature and every terrain including northeastern singletrack, ive only broken a single spoke

SquidPuppet

35mm tires on those rims will give you serious light bulb effect. You'll feel it.

heymatthew

Is that a bad thing? Should I stick with the 32's I've got now?

Mumonkan

its hard to describe, but traction/handling can feel "vague" or "squirmy"

if youve ever ridden a slow leak to the point of barely enough to not scrape rim and felt like you were riding around in mud, its kinda like that

heymatthew

Oh. Yeah. No bueno. Thanks all!

SquidPuppet

Yes it'll feel bad. Squiggly insecure feeling because the tire is trying to roll off the rim when you corner. If you want big tires, which I think is a good idea for the job this bike will have, just get the wider rims. Or even wider rims.

heymatthew

Thanks... I've got a message in to Velomine to swap out my 13's for 18's. Hopefully they can make it happen, even if I have to wait until they come back in stock.

Mumonkan

go go gadget rando

heymatthew

Super cool bags!!!

SquidPuppet

Yeah, frankly, I wouldn't even run 32mm tires on those rims.

On those Schwinns I showed you, I have 35mm tires on WIDE rims. The resulting shape of the tire is nice and round and it provides a really solid stable feeling when I carve a turn hard.

Mumonkan

i have 32mm tires on 19mm wide rims now and they feel fine, as long as the pressure is right they dont feel wonky

mounted, the tires measure ~30-31mm tho

SquidPuppet

19 inside or outside?

Yesterday I was telling Matthew how surprised I was by how much differently tires measure on different rims. Same "35mm" tire on narrow rim measures just under 32. On the wide rim it measures almost 37mm. Huge change.

Mumonkan

inside, theyre old mavic open pros

same tires on cr18s has a profile that look like tubs, akin to 23mm tires on A23's

similarly on my surly people are running the same 3" tires on 40mm rims and theirs are half an inch slimmer than when mounted on the 50mm rabbit holes i have. thats a huge difference in traction

stankonia

Just ordered some stuff for both of my bikes

Fuji - Porteur Bars from VO and a VO Leather Saddle - Aiming to turn this into more of a townie bike. Didn't pull the trigger on fenders yet..I'm probably going to wait until winter rolls around before deciding which ones to get

Kilo - Chrome stem spacers, temple bell with the spacer bell mount, and a silver stem cap. The black spacers were bothering me with my chrome stem and seat post.

Wilfred Laurier

I have a 2.4" (60 mm) tire on 19mm rims on my rigid mtb. It feels a little squirmy but not unreasonable. I am planning one getting a wider front rim eventually.

SquidPuppet

That's a good combo. When i said I wouldn't run 32mm tires, I meant on those 13mm rims.

You'd really feel that off road.....big time.

SquidPuppet

Mumonkan

i had no idea the m13's were only 13mm wide, i thought they were 19 too, come to think of it i cant remember ever hearing of any rim skinnier than 19

SquidPuppet

That was my assumption from the model number, 13 inside/~18-19 outside, so I could be totally wrong. They look skinny as F though.

Lots of rims are way skinnier than 19 if we are talking inside bead seat width. Maybe we aren't both talkin inside measurement?

Mumonkan

^ nope im thinkin of inside bead too. im sure there are skinnier than 19mm i just havent taken notice





because donuts. duh.