Cycling and bicycle racing discussion forums.   View New Forum Topics
Today's Forum Topics

Set as homepage


Go Back   Cycling Forums > Bike Racing > Track Racing
User Name
Password
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read


Welcome to CyclingForums.com

You are currently viewing our website as a guest which gives you limited access to view most discussions. You will have to register before you can post to this thread.

By joining our free online community you will have access to post new topics, communicate privately with other cyclingforums.com members (PM), respond to polls, upload photos and access other special features like product reviews and classifieds.


What Tires do u use on the velodrome???

Reply
 
Thread Tools Search this Thread Display Modes
Old 09-02.-2006, 01:02 AM   #46
Woofer
Registered User
 
Join Date: Jan 2005
Location: Northern California
Posts: 595
Default Re: What Tires do u use on the velodrome???

Quote:
Originally Posted by Billsworld
I have another prob. I recently bought a set of track wheels with a powertap. Tubulars with the podiums as mentioned. I have never used tubulars before and had my bike shop glue them on. Power #s seem the same as the PT on my road bike. Problem. I have a nice dead flat road that I use for sprints. The road bike with 175 cranks and 80.8" gear top speed in that gear is 37.5@ 156 rpm....Jump from about 27 mph . Same conditions with the track bike with new wheels, jump from about same speed. Top speed and cadence however are 34.5 141 rpm from a 165(just changed from 170) cranks and 46x15 =81" I expected 40mph and about 165 rpm. Both tests were only a few weeks apart under similar conditions I noticed that the rear tire has some very noticable high and low spots. Is that the problem, and does that go away as the tire gets some use? Thanks BP (Sorry for the personal perf data)

re: difference in numbers - do the stomp test with both powertap wheels to verify the factory calibration. It can be very difficult to match what one can do on a geared bike in a sprint in that small of a gear right away. Lots of tubular tires are not round - they don't get better after a while. Are you sure it's not the wheel? I've used Vittoria, Tufo and Continental tubulars and Continentals typically were the worst with the hops.
Woofer is offline  
Reply With Quote
Old 09-02.-2006, 01:43 AM   #47
Billsworld
Registered User
 
Join Date: Sep 2005
Posts: 797
Default Re: What Tires do u use on the velodrome???

Quote:
Originally Posted by velodrome.co.nr
as less grip as possible, bordering on bald tires
I registered, but as far as pure track info ,Fixed gear fever is better. You get elite and masters trackies as well as Andrew Coggin giving input on training info. This site has some of the same cast of characters for road , track and mtb. Not being critical just my 2 cents
Billsworld is offline  
Reply With Quote
Old 09-02.-2006, 07:55 PM   #48
velodrome.co.nr
Registered User
 
Join Date: Nov 2005
Posts: 104
Default Re: What Tires do u use on the velodrome???

ok thats great thanks
always welcome constructive critiscism, but just trying to help the guy aout with some advice.
__________________
http://www.velodrome.org.uk - A Home for Cyclists
velodrome.co.nr is offline  
Reply With Quote
Old 10-02.-2006, 10:52 AM   #49
rickt
Registered User
 
rickt's Avatar
 
Join Date: Aug 2003
Location: Metung, Victoria, Australia
Posts: 57
Default Re: What Tires do u use on the velodrome???

Quote:
Originally Posted by Billsworld
I have another prob. I recently bought a set of track wheels with a powertap. Tubulars with the podiums as mentioned. I have never used tubulars before and had my bike shop glue them on. Power #s seem the same as the PT on my road bike. Problem. I have a nice dead flat road that I use for sprints. The road bike with 175 cranks and 80.8" gear top speed in that gear is 37.5@ 156 rpm....Jump from about 27 mph . Same conditions with the track bike with new wheels, jump from about same speed. Top speed and cadence however are 34.5 141 rpm from a 165(just changed from 170) cranks and 46x15 =81" I expected 40mph and about 165 rpm. Both tests were only a few weeks apart under similar conditions I noticed that the rear tire has some very noticable high and low spots. Is that the problem, and does that go away as the tire gets some use? Thanks BP (Sorry for the personal perf data)

As a coach of numerous National Track Champions in the past, and a tracky myself, I should point out that if you have not become familiar with the shorter crank length you will initially have difficulty being efficient in your pedal action and you won't develope your potential output until you are firing the nerves in the right timing. The nervous system of the body is a little like the ignition system of a car. If the timing isn't perfect, neither car or person will function optimally. In our case, if you have only ever trained on longer cranks your nervous system fires the muscles at the appropriate angle for those cranks. Shorter cranks require different timing because the angles through which your limbs travel are different. You simply need to get used to the shorter cranks by constantly training on them before you make any comparisons. To use myself as an example, I have very short thighs and as a result I decided to experiment with 160mm cranks (specially made) after having used 165mm cranks for 27 years prior to that. It took me about 12 months to smooth out the pedal action to a point where I could get plenty of RPM's. It shouldn't take the average cyclist that long to aclimatise, but I am notoriously lazy in the training department. I am kicking myself that I didn't chase up the shorter cranks when I was really fit and only 25 years old. Now, at 44 yrs and not as fit, (but with the shorter cranks) I am pulling out better track TT times than ever, and my flying 200 is the same as when I was 25.
rickt is offline  
Reply With Quote
Old 10-02.-2006, 02:09 PM   #50
Billsworld
Registered User
 
Join Date: Sep 2005
Posts: 797
Default Re: What Tires do u use on the velodrome???

Quote:
Originally Posted by rickt
As a coach of numerous National Track Champions in the past, and a tracky myself, I should point out that if you have not become familiar with the shorter crank length you will initially have difficulty being efficient in your pedal action and you won't develope your potential output until you are firing the nerves in the right timing. The nervous system of the body is a little like the ignition system of a car. If the timing isn't perfect, neither car or person will function optimally. In our case, if you have only ever trained on longer cranks your nervous system fires the muscles at the appropriate angle for those cranks. Shorter cranks require different timing because the angles through which your limbs travel are different. You simply need to get used to the shorter cranks by constantly training on them before you make any comparisons. To use myself as an example, I have very short thighs and as a result I decided to experiment with 160mm cranks (specially made) after having used 165mm cranks for 27 years prior to that. It took me about 12 months to smooth out the pedal action to a point where I could get plenty of RPM's. It shouldn't take the average cyclist that long to aclimatise, but I am notoriously lazy in the training department. I am kicking myself that I didn't chase up the shorter cranks when I was really fit and only 25 years old. Now, at 44 yrs and not as fit, (but with the shorter cranks) I am pulling out better track TT times than ever, and my flying 200 is the same as when I was 25.
Wow, I hadnt thought of that. I do some high cadence work in 42x17 and 42 x19 gears. I can work in the 185-195 range with the 175s on the road (and on the road bike)recently held 30 mph in the 19 for about 12-15 secs. .Historicly i am slightly faster on the fixed. Should I scrap the experiment and just go with what I had ? Thanks Bill P
Billsworld is offline  
Reply With Quote
Old 11-02.-2006, 08:07 AM   #51
WarrenG
Registered User
 
Join Date: Sep 2003
Posts: 1,052
Default Re: What Tires do u use on the velodrome???

Quote:
Originally Posted by Billsworld
Wow, I hadnt thought of that. I do some high cadence work in 42x17 and 42 x19 gears. I can work in the 185-195 range with the 175s on the road (and on the road bike)recently held 30 mph in the 19 for about 12-15 secs. .Historicly i am slightly faster on the fixed. Should I scrap the experiment and just go with what I had ? Thanks Bill P


Since your track riding will be relatively limited I suggest you use cranks that are fairly close to what you use on the road for the majority of your training and racing. Mostly for the reasons mentioned by rickt. With the longer crank arms you might also get a bit more leverage during your accelerations. Regardless, it will make your transitions from road to track and back again, easier. I have my seat and bars set fairly close to equal on both bikes too, except for major track events. FWIW, I use 175's on the road and 170 on the track. The 170 length causes me no problems on a 48 degree banking. (BB height is a factor too.)
WarrenG is offline  
Reply With Quote
Old 11-02.-2006, 09:31 AM   #52
Billsworld
Registered User
 
Join Date: Sep 2005
Posts: 797
Default Re: What Tires do u use on the velodrome???

Quote:
Originally Posted by WarrenG
Since your track riding will be relatively limited I suggest you use cranks that are fairly close to what you use on the road for the majority of your training and racing. Mostly for the reasons mentioned by rickt. With the longer crank arms you might also get a bit more leverage during your accelerations. Regardless, it will make your transitions from road to track and back again, easier. I have my seat and bars set fairly close to equal on both bikes too, except for major track events. FWIW, I use 175's on the road and 170 on the track. The 170 length causes me no problems on a 48 degree banking. (BB height is a factor too.)
Thank you Warren. I am going back to the 170s. Seems like a happy medium. Thanks as usual Bill P
Billsworld is offline  
Reply With Quote
Old 13-02.-2006, 10:06 AM   #53
Lasalles
Registered User
 
Join Date: Aug 2003
Location: Sydney Australia
Posts: 221
Default Re: What Tires do u use on the velodrome???

The beauty of 170 cranks is you grab an old set of Campag road cranks,grind the inside lip off where the 39/42 tooth road chainring would normally go,grab some shorter track studs and bang you have a cheap set of track cranks perfect for miche track chainrings.I had my set sitting on a bbq table for about 18months before i discovered they were the same pcd as miche.
__________________
Hillbrick Zona Track
Felt CA1(Road Hack)
Lasalles is offline  
Reply With Quote
Old 13-02.-2006, 11:19 PM   #54
Billsworld
Registered User
 
Join Date: Sep 2005
Posts: 797
Default Re: What Tires do u use on the velodrome???

Quote:
Originally Posted by Lasalles
The beauty of 170 cranks is you grab an old set of Campag road cranks,grind the inside lip off where the 39/42 tooth road chainring would normally go,grab some shorter track studs and bang you have a cheap set of track cranks perfect for miche track chainrings.I had my set sitting on a bbq table for about 18months before i discovered they were the same pcd as miche.
I seem to be totaly distracted every time I read one of your posts...did you say something?
Billsworld is offline  
Reply With Quote

Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump



All times are GMT +10. The time now is 09:23 PM.


Powered by: vBulletin Copyright © 2000 - 2008, Jelsoft Enterprises Ltd.
Copyright © 2001 - 2006 cyclingforums.com

Links to websites we like:
Pezcyclingnews | Cyclingnews.com | Wine Zone | iinet