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Search: Posts Made By: rclouviere
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Forum: Road Cycling
09-27-22, 09:05 PM
Replies: 28
Views: 762
Posted By spdntrxi

full disc always is better... unless it's like...

full disc always is better... unless it's like 50mph+ wind
Forum: Road Cycling
09-26-22, 09:42 AM
Replies: 28
Views: 762
Posted By msu2001la

HED now makes a wheel for those who can't decide....

HED now makes a wheel for those who can't decide. The Jet 180.

I thought this was some kind of April fools joke when I first saw it:

...
Forum: Road Cycling
09-24-22, 02:24 AM
Replies: 28
Views: 762
Posted By urbanknight

I don't know if they still do, but they used to...

I don't know if they still do, but they used to hold TT championships at Lake Los Angeles and I remember leaving my disc in the car and many competitors did the same. Rumor had it someone drifted off...
Forum: Road Cycling
09-24-22, 12:19 AM
Replies: 28
Views: 762
Posted By Dean V

+1 I have never had an issue with a disc on the...

+1
I have never had an issue with a disc on the rear when windy.
Don't even notice its there as far as bike handling goes.
Forum: Road Cycling
09-23-22, 11:14 PM
Replies: 28
Views: 762
Posted By tempocyclist

Disc. And this:

Disc.

And this:
Forum: Road Cycling
09-23-22, 04:16 PM
Replies: 28
Views: 762
Posted By cxwrench

Always disc on back. If it was windy enough for...

Always disc on back. If it was windy enough for it to be dangerous they'd cancel the event. I worked for a women's pro team for a decade and they (even the smallest girls) ALWAYS used the rear disc....
Forum: Road Cycling
09-23-22, 12:04 PM
Replies: 28
Views: 762
Posted By urbanknight

If it's not super windy, go with the disc. When...

If it's not super windy, go with the disc. When you warm up, if it feels like the wind is pulling you around too much, switch to the 808.
06-20-22, 04:49 PM
Replies: 203
Views: 7,162
Posted By The Chemist

I used to run my tires at maximum pressure, which...

I used to run my tires at maximum pressure, which for my current 700x35 Schwalbe Marathons is 85psi. Over the weekend, however, I decided to try an experiment and drop the pressure to the recommended...
06-12-22, 09:43 AM
Replies: 203
Views: 7,162
Posted By venturi95

We don't talk so much about rotating mass...

We don't talk so much about rotating mass anymore. If you just want speed, look at what the pros are riding on good pavement. From what very little I see of pro races the pavement looks pretty nice...
06-12-22, 09:30 AM
Replies: 203
Views: 7,162
Posted By Doge

I have no issue with re-hashed threads. A:...

I have no issue with re-hashed threads.

A: As high as you can go without bouncing.

Higher pressure for the same setup always provides lower rolling resistance until the tire cannot absorb the...
06-08-22, 10:42 AM
Replies: 203
Views: 7,162
Posted By ofajen

From the article I linked on page 1:WHAT CAUSES...

From the article I linked on page 1:WHAT CAUSES ROLLING RESISTANCETo go faster, the first step is to identify what exactly is slowing us down. When looking at our tires we are looking at casing...
06-08-22, 09:53 AM
Replies: 203
Views: 7,162
Posted By icemilkcoffee

It looks pretty accurate to me too. But I...

It looks pretty accurate to me too. But I disagree that smaller diameter rims require higher pressure. I have a lo-pro bike with 24" front wheels. My wife has a Terry bike with 24" front wheel, and...
06-07-22, 05:22 PM
Replies: 203
Views: 7,162
Posted By PeteHski

Why not believe the more objective testing? The...

Why not believe the more objective testing? The Silca calculator is probably a good starting point. If you play around with their online calculator you will note that it recommends lower pressures...
06-07-22, 05:11 PM
Replies: 203
Views: 7,162
Posted By WhyFi

Smooth is fast. Fast is smooth.

Smooth is fast. Fast is smooth.
06-07-22, 05:10 PM
Replies: 203
Views: 7,162
Posted By WhyFi

Ew, David.

Ew, David.
06-07-22, 08:47 AM
Replies: 203
Views: 7,162
Posted By billridesbikes

Here is an idea. Run your own experiment. Create...

Here is an idea. Run your own experiment. Create a Strava segment on a longish downhill that will take at least a couple minutes to roll down without pedaling. Next start at low pressure and run down...
06-07-22, 08:42 AM
Replies: 203
Views: 7,162
Posted By Daniel4

Low pressure has more rolling resistance because...

Low pressure has more rolling resistance because at the tangent point ( just before road contact), you are flexing the tire material to a higher angle than a tire at a very high pressure.
06-07-22, 07:29 AM
Replies: 203
Views: 7,162
Posted By CAT7RDR

Experiment. Rinse, Repeat.

Experiment. Rinse, Repeat.
06-07-22, 07:11 AM
Replies: 203
Views: 7,162
Posted By rumrunn6

trial & error for the rear tire 5-10psi lower...

trial & error for the rear tire
5-10psi lower for the front tire

​​​​​​​I believe air resistance/drag & weight, will have a greater effect on your speed
06-07-22, 07:06 AM
Replies: 203
Views: 7,162
Posted By DaveSSS

I use the tire pressure calculator at zipp.com. ...

I use the tire pressure calculator at zipp.com. It works for me. Tubeless tires at much lower pressures is what I use.
06-07-22, 06:13 AM
Replies: 203
Views: 7,162
Posted By smd4

I run my Veloflex 700 x 23C's at 140 psi on...

I run my Veloflex 700 x 23C's at 140 psi on smooth pavement. Works for me.
06-07-22, 04:10 AM
Replies: 203
Views: 7,162
Posted By PeteHski

Use the Silca chart as your baseline then. There...

Use the Silca chart as your baseline then. There are too many variables to perfectly optimise your tyre pressure for every occasion anyway. Looking to maximise speed I would perhaps go a little...
06-07-22, 02:18 AM
Replies: 203
Views: 7,162
Posted By MTBbumpcrush

Smooth road surface high pressure is fast,rough...

Smooth road surface high pressure is fast,rough road bigger tire with lower pressure,actual pressure level put your bodyweight into the scale,there is nothing to discuss about,also carbon spoke...
06-06-22, 10:14 PM
Replies: 203
Views: 7,162
Posted By easyupbug

Get a Garmin or something similar and see what...

Get a Garmin or something similar and see what works for you.
06-06-22, 10:12 PM
Replies: 203
Views: 7,162
Posted By beng1

A lot of top racers us the Silca info so it will...

A lot of top racers us the Silca info so it will be as good as any info anyone puts up here or on any public forum. The only extra thing you could do is check with the manufacturers of your tires to...
06-06-22, 10:10 PM
Replies: 203
Views: 7,162
Posted By LarrySellerz

Lots of people will tell you that wider tires at...

Lots of people will tell you that wider tires at lower pressure are just as fast if not even faster than thin tires pumped up hard. Its bollocks, the fastest tires are narrow and pumped hard. The...
12-01-21, 08:38 PM
Replies: 12
Views: 991
Posted By veganbikes

I was blown away on how well it worked. They...

I was blown away on how well it worked. They looked like new and they were pretty gross before hand. I might do a before and after on another bottle that just happens to be at work and not being used...
11-23-21, 09:53 PM
Replies: 12
Views: 991
Posted By veganbikes

I am a big fan of the Podium bottles, that is all...

I am a big fan of the Podium bottles, that is all I use and probably all I will use. I can lock them out when not using and then when using sometimes yes you might get a little burp of fluid but you...
11-23-21, 04:35 PM
Replies: 12
Views: 991
Posted By pdlamb

I've watched full Camelback bottles "burp" fluids...

I've watched full Camelback bottles "burp" fluids as I ride over a bumpy road. Never had that problem with Polar -- that terribly difficult pull to open, push to close nozzle that was great for so...
11-23-21, 02:44 PM
Replies: 12
Views: 991
Posted By 2manybikes

The best, Specialized Purist Hydroflo 23...

The best,

Specialized Purist Hydroflo 23 WaterGate Water Bottle Review - Bing video...
11-23-21, 02:05 PM
Replies: 12
Views: 991
Posted By rumrunn6

I hear what you are saying & when it's cold...

I hear what you are saying & when it's cold enough, it freezes to the bottle cage...
Forum: Road Cycling
04-09-21, 12:18 PM
Replies: 18
Views: 5,590
Posted By tomato coupe

Recent testing has shown that the overall speed...

Recent testing has shown that the overall speed of a bike is largely dependent on the letters used in the naming of the bike. More specifically, speed depends on the letters in the same way points...
Forum: Road Cycling
04-09-21, 11:58 AM
Replies: 18
Views: 5,590
Posted By Ti473

So very true about warm and humid being so much...

So very true about warm and humid being so much faster!
Forum: Road Cycling
04-09-21, 08:17 AM
Replies: 18
Views: 5,590
Posted By rivers

As above, there are a lot of variables to take...

As above, there are a lot of variables to take into consideration. I did a local 10 mile TT on a closed circuit this week and last week. Identical bike and kit, similar wind conditions, even my off...
Forum: Road Cycling
04-09-21, 08:00 AM
Replies: 18
Views: 5,590
Posted By burnthesheep

That's the key right here. Bike weight plays...

That's the key right here.

Bike weight plays out over longer periods of time on steeper gradients. I don't think 5min is enough. Wind and other things can affect flat land work. You have to...
Forum: Road Cycling
02-28-21, 06:53 PM
Replies: 12
Views: 2,233
Posted By WhyFi

I would think so, but you should double-check....

I would think so, but you should double-check. Look at the rails of the saddle - they're often marked. Look at the ears supplied by the seller - they're often marked, too. Failing both of those, do a...
Forum: Road Cycling
02-27-21, 06:34 PM
Replies: 12
Views: 2,233
Posted By WhyFi

Check with Trek - they probably have different...

Check with Trek - they probably have different clamps. The conical part of your clamp looks the same as what I had (Ride Tuned seat mast cap), but the ears that you have/were given do not look like...
Forum: Road Cycling
01-31-21, 02:57 PM
Replies: 2
Views: 477
Posted By cxwrench

Any Trek dealer. You have to go through a dealer....

Any Trek dealer. You have to go through a dealer. If Trek has them they can be ordered by a dealer, if they don't there is a Tech Site that gives all the dimensions and you can get them from another...
Forum: Road Cycling
01-25-21, 04:36 PM
Replies: 4
Views: 1,905
Posted By Elvo

Yes you will need the proprietary stem: ...

Yes you will need the proprietary stem:
https://media.specialized.com/support/collateral/0000071306_R1.pdf
Forum: Road Cycling
01-25-21, 01:42 PM
Replies: 4
Views: 1,905
Posted By Elvo

https://cimg0.ibsrv.net/gimg/bikeforums.net-vbulle...

https://cimg0.ibsrv.net/gimg/bikeforums.net-vbulletin/800x400/1611603746_b98064435c8dc2deb5d7c2b5d17b4b87b7fa0692.jpeg
Forum: Road Cycling
01-15-21, 09:48 AM
Replies: 9
Views: 943
Posted By upthywazzoo

Yes, the BR-9170 calipers will work. You can also...

Yes, the BR-9170 calipers will work. You can also use the Ultegra BR-8070 calipers. The cheapest I've seen a BR-9170 set has been either used or on aliexpress.
Forum: Road Cycling
12-29-20, 09:47 AM
Replies: 30
Views: 2,370
Posted By Sy Reene

A more angled upward stem fwiw, will be...

A more angled upward stem fwiw, will be effectively closer to you, so you may not need a nominally shorter stem if flipped upward and eg. of a 10-14 degree make.
Another option for more effective...
Forum: Road Cycling
12-29-20, 09:21 AM
Replies: 30
Views: 2,370
Posted By DaveSSS

A flipped up 6 or 7 degree stem won't look too...

A flipped up 6 or 7 degree stem won't look too bad, but I'd just try a 10mm shorter stem or bars with less reach. I notice new trek bikes often have 100mm reach bars and 80mm stems, which is the...
Forum: Road Cycling
12-28-20, 09:47 PM
Replies: 30
Views: 2,370
Posted By rower2cyclist

https://cimg4.ibsrv.net/gimg/bikeforums.net-vbulle...

https://cimg4.ibsrv.net/gimg/bikeforums.net-vbulletin/2000x1190/screen_shot_2020_12_28_at_10_16_30_pm_700ad7e1c9aaf00218e17e95bdfb69c58b61147d.png

If people can ride (&win) grand tours with stems...
Forum: Road Cycling
12-28-20, 12:24 PM
Replies: 30
Views: 2,370
Posted By Cyclist0108

Thanks for the pictures. No spacers can be...

Thanks for the pictures. No spacers can be added, because they are currently below the stem. However, that stem appears to have a 0 rise, and you can replace it with one with 7 or even greater...
Forum: Road Cycling
12-28-20, 12:18 PM
Replies: 30
Views: 2,370
Posted By Cyclist0108

He can subtract them from above the stem, and add...

He can subtract them from above the stem, and add them to the bottom, below the stem, in such a way that the net number of spacers is conserved.

Happy now?
Forum: Road Cycling
12-28-20, 12:16 PM
Replies: 30
Views: 2,370
Posted By cxwrench

Please, explain how he can add spacers. I'm all...

Please, explain how he can add spacers. I'm all ears.
Forum: Road Cycling
04-30-20, 08:10 AM
Replies: 57
Views: 3,801
Posted By guadzilla

I would absolutely and totally upgrade the bike...

I would absolutely and totally upgrade the bike to Di2. I've had electronic shifting on my TT bike since 2014 or thereabouts, but i only recently put it on my road bike. And after that, i cant...
Forum: Road Cycling
04-30-20, 05:25 AM
Replies: 57
Views: 3,801
Posted By MugenSi

I upgraded from 6800 to 8050. I bought the full...

I upgraded from 6800 to 8050. I bought the full groupset from Bike24 in a black Friday sale for 940 shipped. I stripped the 6800 from the bike and sold it for 330. I fitted the Di2 groupset myself...
Forum: Road Cycling
04-02-20, 11:32 AM
Replies: 57
Views: 3,801
Posted By JohnJ80

I have converted 4 bikes from mechanical to...

I have converted 4 bikes from mechanical to electronic shifting and I bought one set up for Di2 and converted it to eTap and sold the Di2 parts. I'm a big fan of electronic shifting and I'm sure...
Showing results 1 to 50 of 64
 


 
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