Rotating tires
#51
Senior Member
Well I would never have guessed to try the Work Towards Valve thing; I would have assumed that either way one can push the valve up so it doesn't interfere with the tire beads settling down into the lower channel. OTOH I should note that the video suggested working to a spot ~25° away from the valve. I'm not quite sure if/why working towards or away from valve would affect getting valve properly perpendicular? In my experience one can usually nudge the tire along after mounting to get the valve angle correct.
its funny, like fb said, there are many ways to skin a cat and I just have the habit of starting to work the bead in from the valve area and work away from there, finishing up wherever I finish, and don't really think about it.
Its such a mundane action that in the end, if whatever technique one uses works all the time, with direction, with levers etc then great.
its all a ritual aint it, I put baby powder on my tubes before putting them in, or when I put them in a plastic bag with my fixit stuff--does it really help a tube not stick to a tire over time, I dunno, but it does smell nice and now its part of my ritual, hail mary, something of grace....
#52
Senior Member
Join Date: Sep 2008
Posts: 5,206
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 140 Post(s)
Likes: 0
Liked 82 Times
in
65 Posts
Ditto, by the time a sidewall is that worn out it's obvious it needs replacing. Only time I had a catastrophic tire failure was a huge nail going through tire and rim and the other time I launched into a curb because a shirt bundled under my seat locked the rear wheel and I was skiing through the tire into the curb and down a cliff.
#53
Senior Member
Join Date: Dec 2010
Location: northern Deep South
Posts: 8,998
Bikes: Fuji Touring, Novara Randonee
Mentioned: 36 Post(s)
Tagged: 0 Thread(s)
Quoted: 2651 Post(s)
Liked 2,006 Times
in
1,256 Posts
I'd expect 26" Marathons to last the entire trip, front and rear. If two (or more) of you are on this tour, I'd suggest you take one lightweight folding spare tire as an emergency backup. If you do wear through the tread, put that emergency spare on and have a new tire shipped 3-4 days ahead of you.
As for the worn tire blowout fears, just check the tread when you're airing up the tires. If you see threads, or a different color rubber in the center of the tire, it's time to change that tire. (Of course, that usually happens underneath the fender on the rear tire!)
As for the worn tire blowout fears, just check the tread when you're airing up the tires. If you see threads, or a different color rubber in the center of the tire, it's time to change that tire. (Of course, that usually happens underneath the fender on the rear tire!)
#54
Senior Member
Join Date: Aug 2010
Location: Madison, WI
Posts: 11,334
Bikes: 1961 Ideor, 1966 Perfekt 3 Speed AB Hub, 1994 Bridgestone MB-6, 2006 Airnimal Joey, 2009 Thorn Sherpa, 2013 Thorn Nomad MkII, 2015 VO Pass Hunter, 2017 Lynskey Backroad, 2017 Raleigh Gran Prix, 1980s Bianchi Mixte on a trainer. Others are now gone.
Mentioned: 48 Post(s)
Tagged: 0 Thread(s)
Quoted: 3523 Post(s)
Liked 1,500 Times
in
1,172 Posts
I run different tread patterns on front and rear. More grip (knobs) on front, longer life (smoother) on back. Makes for a better handling bike. Thus, I don't rotate, though, I do occasionally run a non-touring tire up front which wears faster, matching the wear rate of the rear.
For "gravel" touring, I have found that the Marathon Mondial rear and Smart Sam Plus front is a good combo.
For "gravel" touring, I have found that the Marathon Mondial rear and Smart Sam Plus front is a good combo.
The Dureme was a good mixed surface kind of tread, the Extreme has a deeper tread for better off road grip, but it also has siping in the knobs for better wet grip on pavement.
#55
Senior Member
Never felt the need to 'rotate' tires. I generally get 2500-3000 miles service for rear tire, and twice that for the front. Replace rear twice as often as the front. So I buy my tires in multiples of three.
That rough guide has worked for me for the past 40 years. Tires may have improved in treadlife wear, but now I'm putting 50% more weight on them than I did back then so the end result is about the same.
(sigh!)
That rough guide has worked for me for the past 40 years. Tires may have improved in treadlife wear, but now I'm putting 50% more weight on them than I did back then so the end result is about the same.
(sigh!)
#56
Senior Member
Join Date: Mar 2011
Posts: 3,150
Bikes: 2013 Surly Disc Trucker, 2004 Novara Randonee , old fixie , etc
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 671 Post(s)
Likes: 0
Liked 49 Times
in
43 Posts
your comment made me realize that my crooked valve comment most likely comes from having fixed other peoples bikes with really askew valves, maybe I once misplaced a tube in a tire and it wasnt straight, but I certainly have seen other peoples wheels with really askew valves really forcing the whole valve/tube area. These may have been situations where the tubes were too big for the tire and had been fudged in , folded over or whatever, who knows.
its funny, like fb said, there are many ways to skin a cat and I just have the habit of starting to work the bead in from the valve area and work away from there, finishing up wherever I finish, and don't really think about it.
Its such a mundane action that in the end, if whatever technique one uses works all the time, with direction, with levers etc then great.
its all a ritual aint it, I put baby powder on my tubes before putting them in, or when I put them in a plastic bag with my fixit stuff--does it really help a tube not stick to a tire over time, I dunno, but it does smell nice and now its part of my ritual, hail mary, something of grace....
its funny, like fb said, there are many ways to skin a cat and I just have the habit of starting to work the bead in from the valve area and work away from there, finishing up wherever I finish, and don't really think about it.
Its such a mundane action that in the end, if whatever technique one uses works all the time, with direction, with levers etc then great.
its all a ritual aint it, I put baby powder on my tubes before putting them in, or when I put them in a plastic bag with my fixit stuff--does it really help a tube not stick to a tire over time, I dunno, but it does smell nice and now its part of my ritual, hail mary, something of grace....
https://www.sheldonbrown.com/brandt/talcum.html
Jobst Brandt says talc is added by tube makers to keep tubes from getting stuck together from heat of manufacturing & gives no benefit otherwise incl when mounting:
Once had an on-road flat w/tight Specialized sport-touring tire & I couldn't remove it w/o levers for the life 'o me. Mechanic at the nearby LBS removed it w/o levers fairly quickly; he quickly showed me the technique but I didn't quite grasp the details. & it's similar with internet videos about working tires w/o levers--they're usually easier (ie MTB) tires and/or they gloss over exact steps.
#57
Senior Member
Join Date: Dec 2001
Location: New Jersey
Posts: 7,143
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 261 Post(s)
Likes: 0
Liked 11 Times
in
10 Posts
+1, If tires are available en route, either as a carried spare or bought, then when the rear is shot, toss it and replace. I don't bother rotating, and would probably just put the new on in the back, but it's OK to rotate the front tire back if you prefer. OTOH - (IMO) it's not OK to move a rear tire up because of it's wear pattern.
#58
Senior Member
Join Date: Apr 2009
Location: New Rochelle, NY
Posts: 39,100
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
Mentioned: 141 Post(s)
Tagged: 1 Thread(s)
Quoted: 5996 Post(s)
Liked 2,938 Times
in
1,629 Posts
Actually It's been my lifelong goal to actually wear out a front tire before age, a road hazard or wall fraying killed it off. I almost got there on my commuter after 4 seasons, but close only counts in horseshoes.
__________________
FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
#61
Newbie
Join Date: Mar 2016
Posts: 4
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
In the winters of 2013-14 and 2014-15 I did two trips of 4000 km+ in India on the same set of Schwalbe Marathon Mondials. This last winter 2015-16 I cycled again in India and would have used those same tyres once more had it not been that I bought a new bike that takes 28" tyres.
I have seen several reports of people getting both 10 and 20 thousand km out of their Schwalbe Marathons.
I do however carry a cheapish Chinese foldable tyre as a spare, just in case.
I have seen several reports of people getting both 10 and 20 thousand km out of their Schwalbe Marathons.
I do however carry a cheapish Chinese foldable tyre as a spare, just in case.
#62
Senior Member
Join Date: Jul 2014
Posts: 496
Bikes: Volagi Viaje (rando/gravel/tour), Cannondale Slice 4 (tri/TT), Motobecane Fantom PLUS X9 (plus tires MTB)
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 97 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
The idea is that the front tire does more of the work of braking and steering - safety critical functions - so you don't want to move a worn tire from the back to the front.
#63
Senior Member
Join Date: Aug 2010
Location: Madison, WI
Posts: 11,334
Bikes: 1961 Ideor, 1966 Perfekt 3 Speed AB Hub, 1994 Bridgestone MB-6, 2006 Airnimal Joey, 2009 Thorn Sherpa, 2013 Thorn Nomad MkII, 2015 VO Pass Hunter, 2017 Lynskey Backroad, 2017 Raleigh Gran Prix, 1980s Bianchi Mixte on a trainer. Others are now gone.
Mentioned: 48 Post(s)
Tagged: 0 Thread(s)
Quoted: 3523 Post(s)
Liked 1,500 Times
in
1,172 Posts
It is not so much how much wear there is on the tire. I am more worried about a catastrophic tire failure on the front than on the back, as on the back I have a better chance of avoiding a crash. I have had tires go bad with sidewall failures and a few times with casing tears under the tread, most often on the rear. And for that reason, I really do not want to move a tire that was on the back to up front.
#64
Senior Member
Join Date: Apr 2009
Location: New Rochelle, NY
Posts: 39,100
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
Mentioned: 141 Post(s)
Tagged: 1 Thread(s)
Quoted: 5996 Post(s)
Liked 2,938 Times
in
1,629 Posts
It is not so much how much wear there is on the tire. I am more worried about a catastrophic tire failure on the front than on the back, as on the back I have a better chance of avoiding a crash. I have had tires go bad with sidewall failures and a few times with casing tears under the tread, most often on the rear. And for that reason, I really do not want to move a tire that was on the back to up front.
I also ride fat wired-on tires on my commuter and know that they wallow at low (or no) pressure, and I've had the wheel slide out on hard corners. This happens on either wheel, but is slightly worse up front.
So, while there's some slighter greater concern about front vs rear flats, it's not nearly as earth shaking as some believe. If it were, we'd be hearing all sorts of accident/injury reports.
__________________
FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
#66
Senior Member
To me it's about risk assessment. I ride all the time in busy city traffic, assess risks all the time and behave accordingly. I see the same with assessing tire condition, and see no problem in sharing out the wear of tires in very good condition on a 4000km trip.
#67
Senior Member
Join Date: Mar 2011
Posts: 3,150
Bikes: 2013 Surly Disc Trucker, 2004 Novara Randonee , old fixie , etc
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 671 Post(s)
Likes: 0
Liked 49 Times
in
43 Posts
Having ridden tubulars, which tend to be more prone to sudden catastrophic decompression (blowout), all my life, I've had my share on both wheels. IME - there's little control difference with flats on either wheel. OTOH there's a slightly greater with a front failure because braking weights the wheel more, whereas on the rear you can use the brake to unweight the wheel and protect the rim.
I also ride fat wired-on tires on my commuter and know that they wallow at low (or no) pressure, and I've had the wheel slide out on hard corners. This happens on either wheel, but is slightly worse up front.
So, while there's some slighter greater concern about front vs rear flats, it's not nearly as earth shaking as some believe. If it were, we'd be hearing all sorts of accident/injury reports.
I also ride fat wired-on tires on my commuter and know that they wallow at low (or no) pressure, and I've had the wheel slide out on hard corners. This happens on either wheel, but is slightly worse up front.
So, while there's some slighter greater concern about front vs rear flats, it's not nearly as earth shaking as some believe. If it were, we'd be hearing all sorts of accident/injury reports.
That's surprising. I've been lucky enough to never have a blowout (even w/tubulars) though I saw a pro-am criterium race where a rider had a front blowout at high speed (going in a straight line) & immediately crashed. & on icy surfaces it seems as if a front slip is much more likely to cause a spill. However you could still be right on this. At any rate a lot of touring tires aren't esp grippy so it's good to take it easy on the fast sharp turns even with newer tires.
I switched from Schwalbe Marathons to lighter 35 mm Tom Slicks & since I added tire liners have had no flats.
#68
Senior Member
Join Date: Apr 2009
Location: New Rochelle, NY
Posts: 39,100
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
Mentioned: 141 Post(s)
Tagged: 1 Thread(s)
Quoted: 5996 Post(s)
Liked 2,938 Times
in
1,629 Posts
That's surprising. I've been lucky enough to never have a blowout (even w/tubulars) though I saw a pro-am criterium race where a rider had a front blowout at high speed (going in a straight line) & immediately crashed. & on icy surfaces it seems as if a front slip is much more likely to cause a spill. However you could still be right on this. ....
I've probably had a few hundred flats over the last 50 years, but not one happened at a bad moment. OTOH - I've laid my fat tired commuter bike down twice because of a slow leak which dropped tire pressure to where they wallowed in turns into driveways, one of which was conveniently my own.
__________________
FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
#69
Senior Member
Re the wallowing story, a few years ago on a supported trip my wife and I do every summer, I was behind a guy who went down losing the front in a 90 degree corner in the dry, not fast, but knocked the wind out of himself with a good whack. Picking up his bike I saw his front had a flat and he hadn't noticed it as he was talking with his partner. It's easy to discount the feeling of a slow leak in front, I've been lucky the last few times I've had slowish front leaks and recognised that something wasn't right and pulled over right away. I think I have to touch wood on these two situations, but it certainly points out to me anyway the importance of being atune to all mechanical feelings, sounds of your bike, as well as listening to your gut about how your tires feel and reacting right away without hesitation.
#70
Senior Member
Join Date: Aug 2010
Location: Madison, WI
Posts: 11,334
Bikes: 1961 Ideor, 1966 Perfekt 3 Speed AB Hub, 1994 Bridgestone MB-6, 2006 Airnimal Joey, 2009 Thorn Sherpa, 2013 Thorn Nomad MkII, 2015 VO Pass Hunter, 2017 Lynskey Backroad, 2017 Raleigh Gran Prix, 1980s Bianchi Mixte on a trainer. Others are now gone.
Mentioned: 48 Post(s)
Tagged: 0 Thread(s)
Quoted: 3523 Post(s)
Liked 1,500 Times
in
1,172 Posts
That's surprising. I've been lucky enough to never have a blowout (even w/tubulars) though I saw a pro-am criterium race where a rider had a front blowout at high speed (going in a straight line) & immediately crashed. & on icy surfaces it seems as if a front slip is much more likely to cause a spill. However you could still be right on this. At any rate a lot of touring tires aren't esp grippy so it's good to take it easy on the fast sharp turns even with newer tires.
...
...
I had a motorcycle rear tire blow out, managed to keep it under control, but that certainly raised my heart rate quite a bit. I have not had a front blow out, but I don't want to learn what it is like either.
#71
Senior Member
Join Date: Jun 2008
Location: Louisville, KY
Posts: 13,493
Mentioned: 33 Post(s)
Tagged: 0 Thread(s)
Quoted: 4281 Post(s)
Liked 3,007 Times
in
1,849 Posts
Yeah, this would make me definitely not want to rotate, especially on roads I don't know unless I know it's going to be 1000's of km of flat straight roads.
__________________
Bikes: 1996 Eddy Merckx Titanium EX, 1989/90 Colnago Super(issimo?) Piu(?),1990 Concorde Aquila(hit by car while riding), others in build queue "when I get the time"
Bikes: 1996 Eddy Merckx Titanium EX, 1989/90 Colnago Super(issimo?) Piu(?),
#72
Senior Member
Join Date: Jun 2015
Location: Down Under
Posts: 1,936
Bikes: A steel framed 26" off road tourer from a manufacturer who thinks they are cool. Giant Anthem. Trek 720 Multiroad pub bike. 10 kids bikes all under 20". Assorted waifs and unfinished projects.
Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 1188 Post(s)
Liked 1,154 Times
in
640 Posts
The luggage makes way more difference than the flat spot on the front tyre. Tyres like the Marathon are tough, I can't imagine how a partly worn rear could be damaged enough not to put on the front.