"Can I get a 28 or 32 on the rim?
I have a Lemond Buenos Aires.
Okay I know, why would I?
Good Question.
Simple Answers
a) Smoother Commute B) Touring with Panniers.
Thanks in Advance
Robert "" Not the Slowest"" Marcus"
Max Tire size for 700C Mavic Open Pro
Thu, 03/22/2007 - 6:21am
Thu, 03/22/2007 - 6:45am
#1
open pros
Hi Rob,
I have put 23s, 28s, and 42s on my 700c Open Pro rims. That rim will be no problem. Rather or not your frame can handle that width is another question.
I have the 28s on a touring/brevet bike and the 42s on a cyclocross bike; both built specifically to take those wider tires.
Thu, 03/22/2007 - 7:55am
#2
I think the 28's will fit, Not sure I can get the bigger 32's in the clearance.
Now I just need to find a tire. The rubino's you suggested are taking a beating. They are pretty, but pretty cut up.
Looks like you will do your Century Sunday. I will join
up with Jay's Lohud.
Enjoy
Thu, 03/22/2007 - 8:07am
#3
Good question
"Mavic website says limit it to 28mm.
Coincidentally, the 700/28 setup w/ 117PSI on an Open Pro rim is what I'm running.
Scroll down to the bottom of this page for a chart and explanation:
The outside measurement of Mavic Pro is 19.5mm, so lets say the inside is 14-ish -- which would practically limit you to 28-32mm. Per the article, there are dimishing returns to pushing tire size.
The LeMond frame/fork will be the limiting factor anyway. Simple solution would be to go to a local bike store and ask to pull wheels off a demo bike with 28-32mm to see if they'll fit. I'm thinking 28 front and 32 rear.
For touring/commuting, I'd stay with Specialized Armadillo ... or Continental Top Touring ... or Schwalbe Marathon ... if you can find them locally. But I wouldn't mail order until you've touched and measured the goods, real tire sizes can differ substantially from what's advertised.
"
Thu, 03/22/2007 - 8:22am
#4
I also saw the 28 limit on the Mavic site, but what do theyyyy know.
I think Neile's idea of swapping the wheels to test the clearance works. However the only bike that would have a 32 on them in the store is a Hybrid.
I guess they may also be 700C, I guess I will find out.
Thanks All
Thu, 03/22/2007 - 8:36am
#5
wheel
Come to my place and pickup that trainer you wanted to buy last year. I have a spare set of wheels (700c, 130 spacing, openpros) with 28c Conti all season tires lying around. You can see if you can get them on your frame.
Thu, 03/22/2007 - 9:04am
#6
"Hey Kaye
""Come on over to my place"".... Now?
or can I finish work first? Lol
I can do that one Sunday when I get my legz up to gear and join you on a Century ride.
My wifey treated me to a trainer, but for the offer to test the wheels or do you want to sell the wheels?
Robet ""NTS"" Marcus
"
Thu, 03/22/2007 - 9:54am
#7
my name is Kay
Ok Neile and Rob,
My name is not Kate. My name is not Kaye. You don't get to ride with me again until you get it right.
No way I am selling these wheels. They are my primo wheels I built myself with Phil Wood hubs. I have an Ultegra 10 speed 12-25 cassette on the rear. You can take them for a spin, but you have to bring them back.
Thu, 03/22/2007 - 11:17am
#8
oops
"oKAY
u got it
I am very sorry, both about the wheels and messing with your name.
May the bicycling gods protect you and keep your wheels from ever going flat.
Live Long and prosper.
Robert or Robbie or Rob or Bob or Roberto ""NTS"" Marcus
"
Fri, 03/23/2007 - 11:54am
#9
Tire/Rims/Pressure
"""Coincidentally, the 700/28 setup w/ 117PSI on an Open Pro rim is what I'm running.""
Yikes! 117 psi in a 28 mm tire? What's the point of that? I run my 25 mm tires at 100 psi.
""Chainwheel"""
Fri, 03/23/2007 - 12:38pm
#10
"That's off the Mavic Spec.
The purpose is more the comfort and handling to the road and my load.
Robert ""NTS"" Marcus"
Fri, 03/23/2007 - 6:55pm
#11
"""117 psi in a 28 mm tire? What's the point ... ?"""
Well ... 115 felt sluggish and 119 was harsh.
[I didn't experiment with 116 or 118 ...]
Still your point is well taken. I've run 23mm and gotten comparable feel on a road bike with the same pressure.
OTOH, the manufacturer *recommends* 115-125 on these, although think I could get away with lower without pinch flatting as the newer models are only rated good up to 100 psi (lower quality supplier, IMO).
---------------------------------
Overall, I'd say the advantages of wider footprint at the same pressure are better braking, better handling over soft or rough surfaces; longer wear, a stronger foundation to support loaded riding and less susceptibility to accident by getting caught in a crack, track or grate.
The downside of course is the added weight; wind resistance and the wider footprint will make it fractionally more likely to pick up a glass or metal shard.
Rolling resistance should be wash, as overall contact area with the pavement (compression) should be the even at the same rider weight and psi.
Sat, 03/24/2007 - 7:54am
#12
Pressure
"""Well ... 115 felt sluggish and 119 was harsh.""
You must have a more finely calibrated butt than most!
""Still your point is well taken. I've run 23mm and gotten comparable feel on a road bike with the same pressure.""
The real advantage of a wider tire is more comfort and better traction. But to enjoy those benefits you have to reduce pressure.
""OTOH, the manufacturer *recommends* 115-125 on these, although think I could get away with lower without pinch flatting as the newer models are only rated good up to 100 psi (lower quality supplier, IMO).""
Ah, be skeptical of manufacturers pressure recommendations! Pressure should be based on the rider's weight (and touring load, if any) in conjuction with the tire width. See the link below for Sheldon Brown's take on this.
http://sheldonbrown.com/tires.html#pressure
""Rolling resistance should be wash, as overall contact area with the pavement (compression) should be the even at the same rider weight and psi.""
Rolling resistance is due to hysteresis losses. Coarse (low tpi) casings, kevlar belts (not beads), and thick tread patterns will increase rolling resistance. Everything else being equal, wider tires will have less rolling resistance.
http://sheldonbrown.com/tires.html#rolling
http://www.sheldonbrown.com/brandt/rolling-resistance.html
""Chainwheel"""
Tue, 03/27/2007 - 11:01am
#13
"""Rolling resistance is due to hysteresis losses."""
Sir (Madam?) ... you go too far.
Fri, 03/23/2007 - 10:11am
#14
Is this a good rim / why?
I'm still hoping to buy a new lightweight but touring bike at some point, and wonder if these are the rims I should get. I've spent a lot of time cogitating about frames, but not about wheels and that is the next most expensive part. I've got 28's now and am comfortable with those, but would like lightweight. Advice?
Fri, 03/23/2007 - 11:16am
#15
Yes.
Mavic (and Velocity) make good rims.
As for why, and information about wheelbuilding in general, read Peter White (an excellent wheelbuilder):
Fri, 03/23/2007 - 12:06pm
#16
Tire Width
"""Can I get a 28 or 32 on the rim?""
No problem there.
""I have a Lemond Buenos Aires.""
May be an interference problem at the chainstays and seat tube depending on frame geometry. Also may be a problem with dual-pivot brake calipers. If you're currently running 23's, see how much clearance you've got at the key places.
Not all ""700 x 28"" tires actually measure 28 mm wide. Many are closer to 25 mm.
""Chainwheel"""
Fri, 03/23/2007 - 12:43pm
#17
"I plan on testing a 28 and skipping the 32.
This is based on
a) Mavic Wheel Spec limit
b) Most likely Clearance with be more of a hassle.
When(IF) I get into touring I will find the right bike
and avoid the issue.
Thanks
Robert ""NTS"" Marcus"
Thu, 03/22/2007 - 9:12am
#18
Solving one problem, creating another
Road brakes often don't open wide enough to get an inflated 28mm or 32mm tire thru - you'll probably need inline cable adjusters to open the brakes up wider.
Thu, 03/22/2007 - 11:37am
#19
Simply deflate the tire partially before pushing it though the brake pads, then re-inflate -- I've done it no problem. Lots and lots of people have in history -- not everyone rides racing tires.
The only problem with this set-up is clearance between the tires and frame or the center of the brake.
Thu, 03/22/2007 - 4:01pm
#20
Or run full Campy, but with Shimano brake calipers. The Campy quick-release is on the lever, and the Shimano quick-release is on the caliper, so you get twice the width if you need it. Ok, a solution looking for a problem, admittedly.
Fri, 03/23/2007 - 2:20pm
#21
Open Pros w/ 28-40mm tires & Campy brakes,
I've used 28mm Conti Gatorskins on Mavic Open Pros with Campy brakes. Just leave a little extra cable slack at the adjustor so you can open the brake up.
As for fat tires on Open Pros: When I bought a Bruce Gordon tourer years ago Bruce told me his 40mm knobbies would blow off Mavic MA40 rims, wider than Open pros by at least .5mm. I wouldn't want to be on the bike when that happens. I was advised to use MA3s or 4s (whichever are the HD Touring/Tandem rims). And do. This is no place to play the margins of rim/tire compatibility.
