Can new tires buy you 10 watts?
05-19-16, 05:47 AM
#1
Full Member
Thread Starter
Can new tires buy you 10 watts?
05-19-16, 08:09 AM
#3
Non omnino gravis
Ride on any tire with "Gator" in it's name, then switch to pretty much anything else (for me, Gator Hardshells to Michelin PRO4 Endurance.) It was pre PM for me, but my average speed (measured over a period of 4 months) went up almost 2mph. So yeah, tires make a difference.
__________________
05-19-16, 08:30 AM
#4
Super Moderator
Join Date: Jul 2004
Location: Ffld Cnty Connecticut
Posts: 21,844
Bikes: Old Steelies I made, Old Cannondales
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 1173 Post(s)
Liked 929 Times
in
614 Posts
Ride on any tire with "Gator" in it's name, then switch to pretty much anything else (for me, Gator Hardshells to Michelin PRO4 Endurance.) It was pre PM for me, but my average speed (measured over a period of 4 months) went up almost 2mph. So yeah, tires make a difference.
__________________
Bikes: Old steel race bikes, old Cannondale race bikes, less old Cannondale race bike, crappy old mtn bike.
FYI: https://www.bikeforums.net/forum-sugg...ad-please.html
Bikes: Old steel race bikes, old Cannondale race bikes, less old Cannondale race bike, crappy old mtn bike.
FYI: https://www.bikeforums.net/forum-sugg...ad-please.html
05-19-16, 08:36 AM
#6
Senior Member
Join Date: Feb 2009
Posts: 2,522
Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 1422 Post(s)
Likes: 0
Liked 7 Times
in
5 Posts
From 28-30mph, maybe.
From 16 to 18, it's perfectly reasonable. Just going from a crappy chip seal road onto a smooth road will get you 2mph instantly.
If you're riding a heavy commuter / puncture resistant tire and go to any of the top 10 lowest rolling resistance tires, it will be significant.
From 16 to 18, it's perfectly reasonable. Just going from a crappy chip seal road onto a smooth road will get you 2mph instantly.
If you're riding a heavy commuter / puncture resistant tire and go to any of the top 10 lowest rolling resistance tires, it will be significant.
05-19-16, 08:52 AM
#8
Non omnino gravis
You've clearly never ridden Gator Hardshells. Not a single flat in 4,500 miles, but by mile 4,000 they rolled like cinder blocks.
Which is pretty much exactly what I did.
I recently switched my wife's bike from whatever Kenda tires were on the bike to Vittoria Rubino Pro G+, and her average speed (over the 6-7 rides since) increased, on average, 0.7mph, from 13.5mph to 14.2mph. And with her it was a true blind test, as I didn't even mention I had changed the tires.
From 16 to 18, it's perfectly reasonable. Just going from a crappy chip seal road onto a smooth road will get you 2mph instantly.
If you're riding a heavy commuter / puncture resistant tire and go to any of the top 10 lowest rolling resistance tires, it will be significant.
If you're riding a heavy commuter / puncture resistant tire and go to any of the top 10 lowest rolling resistance tires, it will be significant.
I recently switched my wife's bike from whatever Kenda tires were on the bike to Vittoria Rubino Pro G+, and her average speed (over the 6-7 rides since) increased, on average, 0.7mph, from 13.5mph to 14.2mph. And with her it was a true blind test, as I didn't even mention I had changed the tires.
__________________
05-19-16, 10:23 AM
#11
Hear myself getting fat
Join Date: Jul 2011
Location: Inland Northwest
Posts: 754
Bikes: Sir Velo A Sparrow
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 335 Post(s)
Liked 265 Times
in
134 Posts
Road Bike Tires Rolling Resistance Reviews
This website shows the difference a better tire can make. I went from stock Schwabe Lugano's to some Vittoria Rubino Pro III's and noticed an immediately difference in feel between the two. It was shocking. And for only $54 for the tires, tubes and shipping was a good bang for buck upgrade.
This website shows the difference a better tire can make. I went from stock Schwabe Lugano's to some Vittoria Rubino Pro III's and noticed an immediately difference in feel between the two. It was shocking. And for only $54 for the tires, tubes and shipping was a good bang for buck upgrade.
05-19-16, 10:26 AM
#12
Senior Member
05-19-16, 11:19 AM
#13
Senior Member
Join Date: Jun 2015
Posts: 3,466
Mentioned: 57 Post(s)
Tagged: 1 Thread(s)
Quoted: 1531 Post(s)
Likes: 0
Liked 7 Times
in
4 Posts
I went from Schwalabe Luganos to Conti Gp 2 4000's.
I'm not sure I'm any faster, but holding speed seems a touch easier, probably mental or probably more so the fact that I went from 25's to 28's at lower pressure so it's more comfortable.
I'm not sure I'm any faster, but holding speed seems a touch easier, probably mental or probably more so the fact that I went from 25's to 28's at lower pressure so it's more comfortable.
05-19-16, 11:38 AM
#14
Senior Member
Join Date: Oct 2015
Posts: 15,496
Bikes: 2015 Workswell 066, 2017 Workswell 093, 2014 Dawes Sheila, 1983 Cannondale 500, 1984 Raleigh Olympian, 2007 Cannondale Rize 4, 2017 Fuji Sportif 1 LE
Mentioned: 144 Post(s)
Tagged: 0 Thread(s)
Quoted: 7653 Post(s)
Liked 3,485 Times
in
1,840 Posts
If new tires could buy me 10 watts, I;'d either buy a pair and torture them until they told me where the Watt Store is located ...
or I'd buy two dozen and gain 240 watts.
or I'd buy two dozen and gain 240 watts.
Last edited by Maelochs; 05-19-16 at 06:25 PM.
for either option...
05-19-16, 03:48 PM
#17
Senior Member
Join Date: Apr 2010
Location: SoCal
Posts: 3,078
Bikes: Roubaix SL4 Expert , Cervelo S2
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 85 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
I thought Gatorskins to GP4000S was around 20 watts per pair savings but I forget at what speed. I could definitely feel the difference when I switched. The GP4000S felt like they rolled forever when you stop pedalling.
05-19-16, 04:18 PM
#18
Senior Member
I've been wanting to ditch my gatorsking hardshells for awhile, but never having to stop to fix a flat makes me 'faster'...
__________________
05-19-16, 04:19 PM
#19
SuperGimp
Hot damn, I have to go mount the Schwalbe pro ones I have sitting in the garage! I might not even have to pedal!
05-19-16, 04:25 PM
#20
Advocatus Diaboli
Join Date: Feb 2015
Location: Wherever I am
Posts: 8,641
Bikes: Merlin Cyrene, Nashbar steel CX
Mentioned: 14 Post(s)
Tagged: 1 Thread(s)
Quoted: 4739 Post(s)
Liked 1,533 Times
in
1,004 Posts
Genuinely curious as I run the Pro4 Endurance v2s already, and like them, but don't see what's telling me I should stock up on these before they're gone?
05-19-16, 06:40 PM
#21
Coffin Dodger
Join Date: Mar 2013
Location: New Hampshire
Posts: 2,138
Bikes: Motobecane Vent Noir, Lynskey R345, Serotta Nova Special X
Mentioned: 11 Post(s)
Tagged: 1 Thread(s)
Quoted: 794 Post(s)
Liked 292 Times
in
143 Posts
So this is great now you need disc ready tires to go with the disc bike you have to have
05-19-16, 08:13 PM
#22
Senior Member
Sorry, I missed this part. What are you seeing in the review that gives you the idea that the Power Endurance are worse than the Pro4 Endurance?
Genuinely curious as I run the Pro4 Endurance v2s already, and like them, but don't see what's telling me I should stock up on these before they're gone?
Genuinely curious as I run the Pro4 Endurance v2s already, and like them, but don't see what's telling me I should stock up on these before they're gone?
Michelin Power Endurance Rolling Resistance Review
While the Power Endurance doesn't have the reinforced sidewalls the Pro 4 Endurance (v2) (read review) had, rolling resistance has actually gone up. What's even more disappointing is the rolling resistance at lower air pressures. At the high air pressure of 120 psi, rolling resistance of the Endurance has increased by 0.3 watts. At 80 psi, this disadvantage grows to 1.6 watts.
05-19-16, 08:29 PM
#23
Woman make me faster
05-20-16, 01:56 AM
#24
Senior Member
Missleading marketing bulls..t.
"Michelin calculates that of an average rider’s energy, 10-15% is lost to rolling resistance."
An average trained amateur usually develops an average power around 160-200 watt over a 60-100 km ride. Around 10%, which means 16-30 watt, is used against rolling resistance. 10 watt from 16-33 watt means 33% to 63%. Am I supposed to believe that new tires reduce rolling resistance with 33% to 63%???? That's the bull...t
Or:
A well trained amateur can produce 1000 watt over a short time period (minutes). 10-15% of that, which means 100-150 watts, are used against rolling resistance. 10W from 100-150 means 7-10%. It might be true that a new tire versus an old one might produce such saving.
I don't buy it.
"Michelin calculates that of an average rider’s energy, 10-15% is lost to rolling resistance."
An average trained amateur usually develops an average power around 160-200 watt over a 60-100 km ride. Around 10%, which means 16-30 watt, is used against rolling resistance. 10 watt from 16-33 watt means 33% to 63%. Am I supposed to believe that new tires reduce rolling resistance with 33% to 63%???? That's the bull...t
Or:
A well trained amateur can produce 1000 watt over a short time period (minutes). 10-15% of that, which means 100-150 watts, are used against rolling resistance. 10W from 100-150 means 7-10%. It might be true that a new tire versus an old one might produce such saving.
I don't buy it.
