700x28 tire on a Bianchi?
08-15-14, 08:56 AM
#1
Senior Member
Thread Starter
Join Date: Jan 2010
Posts: 968
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 113 Post(s)
Likes: 0
Liked 2 Times
in
2 Posts
700x28 tire on a Bianchi?
My 98-99ish Bianchi Volce is currently running a 700x 23 or 25 tire. When these tires bite the dust, i've thought about going with a wider tire that might be more gravel road/dirt road friendly. Would a 700x28 tire fit/would there be enough brake clearance?
08-15-14, 09:32 AM
#2
working on my sandal tan
Join Date: Aug 2011
Location: CID
Posts: 22,629
Bikes: 1991 Bianchi Eros, 1964 Armstrong, 1988 Diamondback Ascent, 1988 Bianchi Premio, 1987 Bianchi Sport SX, 1980s Raleigh mixte (hers), All-City Space Horse (hers)
Mentioned: 98 Post(s)
Tagged: 0 Thread(s)
Quoted: 3871 Post(s)
Liked 2,568 Times
in
1,579 Posts
I like to use allen wrenches as feeler gauges to measure how much extra clearance I have between my current tires and the chainstays, top of the brake calipers, fork crown, etc. Remember that the difference in tire sizes will be the full amount on top, and half on each side. Then it's just a matter of seeing where you would run into trouble first, and sizing up your tire accordingly, allowing a couple mm here and there as a safety margin.
08-15-14, 09:37 AM
#3
Bianchi Goddess
Join Date: Apr 2009
Location: Shady Pines Retirement Fort Wayne, In
Posts: 27,858
Bikes: Too many to list here check my signature.
Mentioned: 192 Post(s)
Tagged: 2 Thread(s)
Quoted: 2930 Post(s)
Liked 2,923 Times
in
1,491 Posts
Do you between the top of the tire an the brakes? I think clearance between the tire and seat tube may be a bigger concern.
It may be atrial and error thing. This is where is helpful to be friendly with a shop or few cyclist.
It may be atrial and error thing. This is where is helpful to be friendly with a shop or few cyclist.
__________________
“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk
“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk
08-15-14, 09:45 AM
#4
Veteran, Pacifist
Join Date: Dec 2004
Location: Seattle area
Posts: 13,328
Bikes: Bikes??? Thought this was social media?!?
Mentioned: 284 Post(s)
Tagged: 0 Thread(s)
Quoted: 3898 Post(s)
Liked 4,832 Times
in
2,229 Posts
Remember tire sizes vary too. Not every tire size has the same 'profile'. Wider rims will offer a new possibility of shapes, iirc.
__________________
Vintage, modern, e-road. It is a big cycling universe.
Vintage, modern, e-road. It is a big cycling universe.
08-15-14, 10:30 AM
#5
Full Member
Join Date: Sep 2007
Location: seoul korea
Posts: 461
Bikes: 3Rensho SuperRecord Export, Bridgestones MB1 RB1 XO2, Colnago Super, Medici GranTurismo, Schwinn Paramount, Olmo Competition, Raleigh Portage, Miyata 1000, Stumpjumper, Lotus Competition, Nishiki Maxima, Panasonic DX6000, Zeus Criterium
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 30 Post(s)
Likes: 0
Liked 82 Times
in
36 Posts
a quick down and dirty way to check: you can wrap a few mm (layers) of thick tape on one area of existing skinnier tires and spin to see if there's rubbing anywhere
08-15-14, 11:34 AM
#6
Senior Member
Join Date: Jul 2008
Location: Minas Ithil
Posts: 9,173
Mentioned: 66 Post(s)
Tagged: 0 Thread(s)
Quoted: 2432 Post(s)
Liked 638 Times
in
395 Posts
Just measure everything with a micrometer with your current tires on. You want to have @3mm of clearance with the new tire. Beware that not all tires are true size. I have 25c Krylions on my Focus but they actually measure out to 27c. Wanted to try them on my Paramount and the tire rubbed the bottom of the fork.
08-15-14, 12:20 PM
#7
Ride, Wrench, Swap, Race
Join Date: Jan 2010
Location: Northern California
Posts: 9,193
Bikes: Cheltenham-Pedersen racer, Boulder F/S Paris-Roubaix, Varsity racer, '52 Christophe, '62 Continental, '92 Merckx, '75 Limongi, '76 Presto, '72 Gitane SC, '71 Schwinn SS, etc.
Mentioned: 132 Post(s)
Tagged: 0 Thread(s)
Quoted: 1565 Post(s)
Liked 1,295 Times
in
865 Posts
It's a good idea to have at least several mm of clearance all around, since without it, a wheel can jam up if a tire so much as suffers the common "outer-ply failure" where the tire suddenly gets a fat spot.
A guy on today's ride was left calling for a ride because he broke a spoke and the generously-sized tire was rubbing the chainstay pretty forcefully.
There are things that stick to a tire's tread and which can lock up a wheel/tire with insufficient running clearance. It's a safety issue, just don't look at track bike tire clearances for a practical reference, they're supposed to be ridden only on a clean track.
A guy on today's ride was left calling for a ride because he broke a spoke and the generously-sized tire was rubbing the chainstay pretty forcefully.
There are things that stick to a tire's tread and which can lock up a wheel/tire with insufficient running clearance. It's a safety issue, just don't look at track bike tire clearances for a practical reference, they're supposed to be ridden only on a clean track.
Thread
Thread Starter
Forum
Replies
Last Post
Barrettscv
Cyclocross and Gravelbiking (Recreational)
6
10-20-16 02:23 PM
