Go Back  Bike Forums > Bike Forums > Road Cycling
Reload this Page >

Any upgrade in performance with these?

Notices
Road Cycling “It is by riding a bicycle that you learn the contours of a country best, since you have to sweat up the hills and coast down them. Thus you remember them as they actually are, while in a motor car only a high hill impresses you, and you have no such accurate remembrance of country you have driven through as you gain by riding a bicycle.” -- Ernest Hemingway

Any upgrade in performance with these?

Old 05-25-09, 07:15 PM
  #1  
Sommy
Senior Member
Thread Starter
 
Join Date: Aug 2008
Posts: 136
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 1 Time in 1 Post
Any upgrade in performance with these?

I'm very happy with my bike - 2009 Tarmac Expert, but I'm thinking of a few minor upgrades and I'm wondering if they will add anything to performance.

1 - I currently have some entry-level Shimano pedals and generally happy, but they are 330 grams and I've been looking at moving to some Keo Carbon's that would drop 100 grams. Besides the weight, would I see any benefit from upgrading out of my entry-level pedals?

2 - I have Specialized Mondo Pro tires that came stock on my Tarmac. I've read a lot about the Conti GP4000 tires. Would I see any upgrade in performance with these?

Thanks in advance.
Sommy is offline  
Old 05-25-09, 07:16 PM
  #2  
Busta Quad
Banned
 
Join Date: Feb 2009
Location: Painville, USA
Posts: 1,914

Bikes: 2007 Tarmac Pro

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
1 - No

2 - Maybe, but not much.
Busta Quad is offline  
Old 05-25-09, 07:18 PM
  #3  
Pharmr
Home, home again
 
Pharmr's Avatar
 
Join Date: Nov 2006
Location: West Texas
Posts: 2,543

Bikes: Scott S10, Ultegra

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
I'd say almost definitely not on #1, and probably not on #2
Pharmr is offline  
Old 05-25-09, 07:20 PM
  #4  
garysol1 
Senior Member
 
garysol1's Avatar
 
Join Date: Apr 2005
Location: K-Zoo Michigan
Posts: 10,229
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 67 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
Originally Posted by Sommy View Post

1 - I currently have some entry-level Shimano pedals
.
SPD's and Mountain shoes?
__________________
Trek Emonda SLR Speedy
Trek Stache 9.7 Its a hoot!
Specialized AWOL Mile Muncher
Specialized Fatboy Trail Miles of Smiles
Kona Jake The Snake Cross
garysol1 is offline  
Old 05-25-09, 08:03 PM
  #5  
elader
Senile member
 
Join Date: Mar 2009
Location: Boyds, MD
Posts: 179

Bikes: Felt F2C

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
My bike came with Keo Classics. I got a good deal on the carbons and swapped them out. Man they look exactly the same. Saved an ounce? Could have just filled the water bottle slightly lower...

I have the conti 4000S tires. Good tires make a difference. I had some crappy tires on the bike. These are lgighter, smoother, and roll easier. Bought a set off an ebay bike shop for half price.
elader is offline  
Old 05-25-09, 08:07 PM
  #6  
Meek
Senior Member
 
Join Date: Jan 2005
Posts: 536
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
+1
Originally Posted by pharmr View Post
i'd say almost definitely not on #1, and probably not on #2
Meek is offline  
Old 05-25-09, 08:07 PM
  #7  
Cdy291
Senior Member
 
Join Date: Jan 2008
Location: Georgia
Posts: 1,753
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
The Specialized Mondos and the 4000S's are pretty much along the same line. The conti's could be better, but only slightly. Just wear the Mondo's out then try some more.
__________________
Originally Posted by RacerOne View Post
Get the Trek, either one. You'll piss off BF and you'll be happy.

Co owner of The Chain Station bike shop.
Cdy291 is offline  
Old 05-25-09, 08:09 PM
  #8  
roy5000x2
Senior Member
 
Join Date: Dec 2006
Posts: 1,133
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
1. The weight savings don't mean much. If you're racing and putting out a lot of power in sprints, then getting Keo Carbons would be useful because of the higher cleat tension.

2. Again, if you're racing, the conti 4000s or a similar high grip tire would be useful.

In short, if you aren't racing, don't bother.
roy5000x2 is offline  
Old 05-25-09, 08:46 PM
  #9  
HarryStoddard
Senior Member
 
Join Date: Oct 2008
Location: Sacramento, CA
Posts: 270
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Your pedals are a moving part (sometimes 2X faster than the bike itself) so upgrading those would help but as to whether or not you'll notice, I'm not sure. I've learned that riding never gets easier, you just get faster.
HarryStoddard is offline  
Old 05-26-09, 05:44 AM
  #10  
carpediemracing 
Senior Member
 
Join Date: Feb 2007
Location: Tariffville, CT
Posts: 15,178

Bikes: Tsunami Bikes

Mentioned: 35 Post(s)
Tagged: 0 Thread(s)
Quoted: 299 Post(s)
Liked 34 Times in 20 Posts
I just looked up the Tarmac Expert. It's all Ultegra? It looks like a very good bike. Except for sweeping wholesale changes, I don't see how minor upgrades would help it. Maybe the seatpost (the Zertz one), you can change that out, but I don't know what that'll save. Tires, pedals (if you got appropriate level pedals) would be a waste of money, unless you wore them out or broke them.

If you're riding much more than you did in the past, a position adjustment would do more for your power than a component like pedals or tires. For example, if you're doing tons of miles compared to your last bike, your back and glutes will be stronger than before. You can stretch out and/or drop your bars, and allow your body to recruit your glutes more often (they get recruited when you're bent over more than a certain amount). Your body constantly adapts to your riding (or lack thereof). If this weren't true, no one would train. Even riders like Bernard Hinault changed their position, late in his career, when he lost speed but gained some power (if one could claim that of him) - he got a longer, lower stem and promptly went out and won the Giro di Lombardia in a long solo break. (I don't count Merckx as changing his position because he changed it during races all the time).

The other big change would be aero wheels (55mm or taller rims). And if you wanted a big decrease in weight, tubulars on light wheels.

But making "minor" updates is pretty much a waste of functional dollars. Fine if you're replacing broken stuff, or you just want cooler looking things (hey, I bought bottle cages because they were cool looking - it's not like I didn't already have about 10 or 15 cages on my various bikes).

I race on Krylions, which most BFers think are way below GP4000s, PR3s, etc, but for me they seem perfectly fine. I haven't won a field sprint on them, but I've gotten second a few times.

I ride Keos and Sprints and honestly, I can't tell the difference once I've clipped into the pedals. I've raced them interchangeably. When I ride the much heavier SPD-Rs, I feel a slight difference, but it's probably because I worry about unclipping (or not being able to do so). My shoes are also much heavier (heavier sole, heavier cleat).

cdr
carpediemracing is offline  
Old 05-26-09, 06:31 AM
  #11  
StanSeven
Administrator
 
Join Date: Feb 2005
Location: Delaware shore
Posts: 13,322

Bikes: Cervelo C5, Guru Photon, Waterford, Specialized CX

Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Quoted: 746 Post(s)
Liked 326 Times in 256 Posts
Originally Posted by HarryStoddard View Post
Your pedals are a moving part (sometimes 2X faster than the bike itself) so upgrading those would help but as to whether or not you'll notice, I'm not sure. I've learned that riding never gets easier, you just get faster.
********** What is this?
StanSeven is offline  
Old 05-26-09, 08:44 AM
  #12  
DrPete 
Dirt-riding heretic
 
DrPete's Avatar
 
Join Date: Aug 2005
Location: Gig Harbor, WA
Posts: 17,413

Bikes: Lynskey R230/Red, Blue Triad SL/Red, Cannondale Scalpel 3/X9

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
Originally Posted by StanSeven View Post
********** What is this?
BF science.
__________________
"Unless he was racing there was no way he could match my speed."
DrPete is offline  
Old 05-26-09, 08:48 AM
  #13  
bratton
Senior Member
 
Join Date: Jul 2008
Location: ridley, pa
Posts: 291

Bikes: felt f85

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
the only correct answer for a newer rider:

ride it until it breaks.
bratton is offline  
Old 05-26-09, 09:22 AM
  #14  
wfrogge
Senior Member
 
Join Date: Feb 2007
Posts: 3,917
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
If they are SPD pedals the yes you will like the KEOs better. Tires..... meh
wfrogge is offline  
Old 05-26-09, 02:18 PM
  #15  
drunix
Are we having fun yet?
 
Join Date: May 2005
Location: Evanston, IL
Posts: 73

Bikes: Felt F75, Gary Fisher Big Sur

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
I doubt that you'll notice much difference with the new pedals.

I do however think that you will notice the upgrade to from Specialized Mondo Pro to Conti GP4000S. Specialized Mondo Pro came as original equipment on my bike, and I eventually switched to Conti GP4000S. I'd say that there is a noticeable improvement in cornering feel.

<BF Science Warning>

I have a theory as to why... If you look at the Mondo Pro tires, you'll notice that they have a "shoulder" of sorts and not smooth rounded tread down to the sidewall. I suspect that this shoulder squirms a little while cornering, and thus gives a less stable feel in corners.

Dunno if it's worth an immediate upgrade, but I do think you'll notice a difference.
drunix is offline  
Old 05-26-09, 05:20 PM
  #16  
HarryStoddard
Senior Member
 
Join Date: Oct 2008
Location: Sacramento, CA
Posts: 270
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by StanSeven View Post
********** What is this?
From the speedplay website:
"Aerodynamic Drag
Although the aerodynamic drag of a pedal system might seem insignificant compared to other parts of a bike, pedals produce a far greater amount of drag than one would expect. Pedals, like wheels, travel through the air at speeds far greater than other non-rotating parts of a bicycle. As a pedal travels forward, at the top of the stroke, it can travel as fast as twice the speed of the bike. Since wind drag increases at the square of the velocity, any part moving through the air faster than the bike will create a disproportionately large percentage of drag."

https://www.speedplay.com/index.cfm?f...ome.chooselong

I resent that BF science comment, "Dr" Pete
HarryStoddard is offline  
Old 05-26-09, 05:48 PM
  #17  
Spiduhman
Senior Member
 
Spiduhman's Avatar
 
Join Date: Nov 2007
Location: CenCal - SLO
Posts: 704

Bikes: S2, Wilier GTR (Arr), Giant VT, Myata 3-10

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 14 Post(s)
Likes: 0
Liked 1 Time in 1 Post
fwiw, my new(er) bike has sleeker look(alike) pedals, more aero crank, semi aero wheels with lower spoke count, aero frameset, and hidden cables - the entire package rolls a bit faster/easier compared to the old bike. It's noticeable at "high" speed and into the wind, which is the same thing.

It's a nice side benefit - how it fits, feels, and works is bigger than the aero, but aero was "free."

Just pedals - you will notice if they feel better and/or are easier to get into/out of.

I concur, wear the tyres out; if you get lucky, you'll slice them up (w/o mishap).
Spiduhman is offline  
Old 05-26-09, 09:21 PM
  #18  
HarryStoddard
Senior Member
 
Join Date: Oct 2008
Location: Sacramento, CA
Posts: 270
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by Spiduhman View Post
fwiw, my new(er) bike has sleeker look(alike) pedals
Nice pun. I also like that you live in Northern California but spell tires the English way.
HarryStoddard is offline  
Old 05-26-09, 10:43 PM
  #19  
Spiduhman
Senior Member
 
Spiduhman's Avatar
 
Join Date: Nov 2007
Location: CenCal - SLO
Posts: 704

Bikes: S2, Wilier GTR (Arr), Giant VT, Myata 3-10

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 14 Post(s)
Likes: 0
Liked 1 Time in 1 Post


First year of school in Barrow, England ...a few years ago.
Spiduhman is offline  
Old 05-26-09, 10:54 PM
  #20  
FreddyBoy
SmackTalk'rExtraordinaire
 
Join Date: Dec 2008
Location: So. Jersey
Posts: 293

Bikes: LeMond Reno

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
More important are the shoes you are using for your current pedals.
Are those SPD's or SPD-SL's?
If you are jonesing to make a purchase, get a decent pair of carbon soled shoes.
FreddyBoy is offline  
Old 05-26-09, 11:09 PM
  #21  
hairnet
Fresh Garbage
 
hairnet's Avatar
 
Join Date: Apr 2009
Location: Los Angeles
Posts: 13,196

Bikes: N+1

Mentioned: 21 Post(s)
Tagged: 0 Thread(s)
Quoted: 346 Post(s)
Liked 15 Times in 8 Posts
Originally Posted by drunix View Post
and I eventually switched to Conti GP4000S. I'd say that there is a noticeable improvement in cornering feel.

My friend keeps telling to buy these tires just for that reason. I keep telling him I'm not a racer
hairnet is offline  
Old 05-27-09, 01:57 AM
  #22  
kaiserboy
Senior Member
 
Join Date: Mar 2008
Location: Modesto, CA
Posts: 266

Bikes: 2017 Giant TCR Advanced Pro/2015 Trek Emonda SL

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Good tires are worth it. Since I got my gatorskins I rarely ever get a flat.
kaiserboy is offline  
Old 05-27-09, 04:56 AM
  #23  
KevinF
Keep on climbing
 
Join Date: Apr 2004
Location: Marlborough, Massachusetts
Posts: 2,192

Bikes: 2004 Calfee Tetra Pro

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 24 Post(s)
Liked 2 Times in 1 Post
Originally Posted by HarryStoddard View Post
From the speedplay website:
"Aerodynamic Drag
Although the aerodynamic drag of a pedal system might seem insignificant compared to other parts of a bike, pedals produce a far greater amount of drag than one would expect. Pedals, like wheels, travel through the air at speeds far greater than other non-rotating parts of a bicycle. As a pedal travels forward, at the top of the stroke, it can travel as fast as twice the speed of the bike. Since wind drag increases at the square of the velocity, any part moving through the air faster than the bike will create a disproportionately large percentage of drag."

https://www.speedplay.com/index.cfm?f...ome.chooselong
You've got to love "science" written by the marketing department.
KevinF is offline  
Old 05-27-09, 05:37 AM
  #24  
rm -rf
don't try this at home.
 
rm -rf's Avatar
 
Join Date: Jan 2006
Location: N. KY
Posts: 5,185
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 673 Post(s)
Liked 55 Times in 44 Posts
Originally Posted by HarryStoddard View Post
From the speedplay website:
"Aerodynamic Drag
Although the aerodynamic drag of a pedal system might seem insignificant compared to other parts of a bike, pedals produce a far greater amount of drag than one would expect. Pedals, like wheels, travel through the air at speeds far greater than other non-rotating parts of a bicycle. As a pedal travels forward, at the top of the stroke, it can travel as fast as twice the speed of the bike. Since wind drag increases at the square of the velocity, any part moving through the air faster than the bike will create a disproportionately large percentage of drag."

https://www.speedplay.com/index.cfm?f...ome.chooselong

I resent that BF science comment, "Dr" Pete
I thought this sounded bogus. So I did a quick calculation. Google can do the math right in the search entry.

175 mm in feet = .58 feet
circumference of the circle (.58*2)*3.14 = 3.64 feet

Let's say you are riding at only 20mph. So twice the speed of the bike, 40 mph is:
google for "40 mph in feet per second" = 58.6

Revolutions to make 58.6 feet per second: 58.6 / 3.64 = 16 revolutions per second
But the bike is already at 20 mph, so we "only" need 8 revs per second!

So yeah, maybe a mountain bike in the granny at 4 mph might pedal at twice the speed of the bike.

Edit -- 100 rpm * 3.64 feet = 364 feet per minute. In mph = 4.14 mph. So your pedals are going at 24 mph when you are going 20.

Last edited by rm -rf; 05-27-09 at 05:48 AM.
rm -rf is offline  
Old 05-27-09, 05:50 AM
  #25  
H2Row
Senior Member
 
Join Date: Dec 2007
Posts: 102
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by HarryStoddard View Post
From the speedplay website:
"Aerodynamic Drag
Although the aerodynamic drag of a pedal system might seem insignificant compared to other parts of a bike, pedals produce a far greater amount of drag than one would expect. Pedals, like wheels, travel through the air at speeds far greater than other non-rotating parts of a bicycle. As a pedal travels forward, at the top of the stroke, it can travel as fast as twice the speed of the bike. Since wind drag increases at the square of the velocity, any part moving through the air faster than the bike will create a disproportionately large percentage of drag."

https://www.speedplay.com/index.cfm?f...ome.chooselong

I resent that BF science comment, "Dr" Pete
Then I'd replace my shoes first... Pedals surely have barely any wind exposure, the shoes probably shield them a lot. It's a marketing ploy.
H2Row is offline  

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright © 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.