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-   -   Racer Tech Thread (https://www.bikeforums.net/33-road-bike-racing/956936-racer-tech-thread.html)

tetonrider 08-26-17 01:50 AM


Originally Posted by aaronmcd (Post 19818259)
Which one should i get, and will I be disappointed in my new power after using Stages for so long? :lol:

those aren't exactly inexpensive. would you consider the used market? you can get some VERY nice stuff for not all that much more.

i guess 165 would be the limiter, though.

topflightpro 08-27-17 06:29 AM


Originally Posted by aaronmcd (Post 19818272)
Also, speaking of cleat placement - I am in need of new shoes, and my current shoes are not wide. Therefore they are much longer than my feet, and the cleats are as far back as possible and just barely at the balls of my feet.

What's a good super wide, inexpensive, durable, easy to use shoe from a company that allows returns if the size is wrong?


Wait, you're willing to drop several hundred dollars on a PM to try a different crank length, but you are sweating the cost of shoes?

As for wide shoe options:
Sidi
Shimano
Specialized
Lake
Bont

Regular Bonts are not wide. Bont has a pretty nifty tool for verifying what size you need. Also, IIRC, Lake posts the width measurements of its shoes.

mike868y 08-27-17 06:36 AM

how many years do you guys generally get out of your pedals? my 5 year old 105s finally let me down. max tension and
. cleats aren't pristine but are fine (and I rode a friends pedal and didn't pull out so definitely the pedal).


Ttoc6 08-27-17 09:16 AM


Originally Posted by hubcyclist (Post 19817776)
For trainer enthusiasts (maybe I'm the only one lol), saw a thread on slowtwitch where someone ran across a wahoo test site and posted images of a new front wheel incline simulator (called kickr climb) to pair with their Kickr trainers, plus a refresh of the kickr. Unsure if overly gimmicky or cool

http://forum.slowtwitch.com/forum/Slowtwitch_Forums_C1/Triathlon_Forum_F1/Kickr_Climb_P6404432

Lnk to the kickr climb page. Some cool details, but probably just a gimmick. I think it will be ~800$ so way more than I would be willing to spend on a tool that really doesn't do much beside improve a simulation.

It will be cool, however, to see if trainerroad (et al) integrate this into their training platform somehow.

miyata man 08-27-17 10:54 AM

Tacx finally came out with the consumer ready treadmill. The cost of bureaucracy and regulation effectively neutered it. To all outward appearances they made an industrial gym treadmill for running that you can ride a bike on. Still more than any normal person would spend for it.

hubcyclist 08-28-17 11:20 AM

so i'm kind of in the market for shoes as well, since one of my strap loops is tearing off on my cheap 4 year old pearl izumi entry level shoes. The bont riot looks intriguing (and only $75 at the moment). given that I've had some fitting done with my shoes (arch support and toe wedge), would something like the ability to do heat molding help to create another layer of shoe comfort? my current shoes aren't uncomfortable, per se, but I had some issues with toe numbness on my left foot that have been largely mitigated with the inserts and of course cleat placement

aaronmcd 08-28-17 11:40 AM


Originally Posted by topflightpro (Post 19820871)
Wait, you're willing to drop several hundred dollars on a PM to try a different crank length, but you are sweating the cost of shoes?

As for wide shoe options:
Sidi
Shimano
Specialized
Lake
Bont

Regular Bonts are not wide. Bont has a pretty nifty tool for verifying what size you need. Also, IIRC, Lake posts the width measurements of its shoes.

Well I've been sweating the cost of the power meter crankset also which is why its taken me a year of hemming and hawing before making a decision!

Yesterday I met another cat 2 dude, my height and said he has short legs also. His saddle height is the same as mine and he already dropped to 165 cranks. Claimed he almost instantly gained 15 to 20 watts with shorter cranks. But he is also less flexible than I am. I'm not looking to gain power. I just want to be more comfortable and aero and not LOSE power.

Ygduf 08-28-17 12:33 PM


Originally Posted by aaronmcd (Post 19823667)
Well I've been sweating the cost of the power meter crankset also which is why its taken me a year of hemming and hawing before making a decision!

Yesterday I met another cat 2 dude, my height and said he has short legs also. His saddle height is the same as mine and he already dropped to 165 cranks. Claimed he almost instantly gained 15 to 20 watts with shorter cranks. But he is also less flexible than I am. I'm not looking to gain power. I just want to be more comfortable and aero and not LOSE power.

if you want to be more aero and look less like a fill in guitar player for Stillwater...

http://www.maths.usyd.edu.au/u/duncans/bike_aero.pdf

aaronmcd 08-28-17 01:32 PM

I'll take the 8 second penalty until I turn pro and start racing grand tours :lol:

Harlan 08-29-17 06:34 AM


Originally Posted by aaronmcd (Post 19823667)
Well I've been sweating the cost of the power meter crankset also which is why its taken me a year of hemming and hawing before making a decision!

Yesterday I met another cat 2 dude, my height and said he has short legs also. His saddle height is the same as mine and he already dropped to 165 cranks. Claimed he almost instantly gained 15 to 20 watts with shorter cranks. But he is also less flexible than I am. I'm not looking to gain power. I just want to be more comfortable and aero and not LOSE power.

For posterity, what's your saddle height?

mike868y 08-29-17 09:03 AM


Originally Posted by hubcyclist (Post 19823606)
so i'm kind of in the market for shoes as well, since one of my strap loops is tearing off on my cheap 4 year old pearl izumi entry level shoes. The bont riot looks intriguing (and only $75 at the moment). given that I've had some fitting done with my shoes (arch support and toe wedge), would something like the ability to do heat molding help to create another layer of shoe comfort? my current shoes aren't uncomfortable, per se, but I had some issues with toe numbness on my left foot that have been largely mitigated with the inserts and of course cleat placement

i can't recommend sworks shoes enough. an incredible warranty makes them even more worth it.

rubiksoval 08-29-17 12:29 PM


Originally Posted by aaronmcd (Post 19818259)
Which one should i get, and will I be disappointed in my new power after using Stages for so long? :lol:

I had the FSA Gossamer and sold it within a couple of months. The Qfactor or something was ridiculous. My left crank arm felt like it would wobble at the top of the stroke.

And it was absolutely impossible to get on and off the bike (BB386 evo). I was using full-force blows with a hammer and of course it'd knock the bearings out each time. P2Max customer service were just like "sometimes it's tight". Yeah, right.

Never going back to FSA cranks, nor likely p2max.

Wylde06 08-29-17 12:31 PM


Originally Posted by topflightpro (Post 19820871)
Wait, you're willing to drop several hundred dollars on a PM to try a different crank length, but you are sweating the cost of shoes?

As for wide shoe options:
Sidi
Shimano
Specialized
Lake
Bont

Regular Bonts are not wide. Bont has a pretty nifty tool for verifying what size you need. Also, IIRC, Lake posts the width measurements of its shoes.

Not sure how wide aaron's feet are, but for my super wide feet Specialized just didnt fit. I wore Sidi Mega's before, but am currently in a pair of Shimano 321's that are very comfortable...the 321's are not the cheapest pair of shoes, but Shimano may be worth looking into as im sure the cheaper shoes fit close to the same

rubiksoval 08-29-17 12:36 PM


Originally Posted by mike868y (Post 19820878)
how many years do you guys generally get out of your pedals? my 5 year old 105s finally let me down. max tension and i can still pull out of them. cleats aren't pristine but are fine (and I rode a friends pedal and didn't pull out so definitely the pedal).

https://twitter.com/resultsboy/statu...90837565456384

1.5 years out of one pair of 105 al. Have had 2 years out of another 105 al. They still work okay. Got about half a season out of carbon ultegra. They still work, more or less, just that the right pedal has a l~1-2mm "give" now at the front that I feel when cranking which drives me crazy. Like extra forward float or something. Can't figure out how it happened, but the 105 I trashed did that too, along with the axle bearing getting gross.

Never had an issue with pulling out.

rubiksoval 08-29-17 12:39 PM


Originally Posted by aaronmcd (Post 19823667)

Yesterday I met another cat 2 dude, my height and said he has short legs also. His saddle height is the same as mine and he already dropped to 165 cranks. Claimed he almost instantly gained 15 to 20 watts with shorter cranks. But he is also less flexible than I am. I'm not looking to gain power. I just want to be more comfortable and aero and not LOSE power.

Mentioned it a few times, but I'm 5"11 and went to 165s. No power gains, no power losses that I can see at any point along the spectrum. Just increased drop, easier to stay low for longer (always had trouble with knees in chest), and I can pedal through more turns.

furiousferret 08-29-17 12:44 PM


Originally Posted by hubcyclist (Post 19823606)
so i'm kind of in the market for shoes as well, since one of my strap loops is tearing off on my cheap 4 year old pearl izumi entry level shoes. The bont riot looks intriguing (and only $75 at the moment). given that I've had some fitting done with my shoes (arch support and toe wedge), would something like the ability to do heat molding help to create another layer of shoe comfort? my current shoes aren't uncomfortable, per se, but I had some issues with toe numbness on my left foot that have been largely mitigated with the inserts and of course cleat placement

I have the leather specialized, they're great but expensive. In the past I've had issues with fit and their insole system usually has something that works for everyone

http://www.thetallcyclist.com/wp-con...5/img_0485.jpg

dz_nuzz 08-29-17 12:49 PM

I have two sets of the S-Works 6 shoes. Why 2? Because I love them so much and decided I wanted to 'freshen up' after having ridden a pair for ~30k miles. I am still wearing the old pair because they have conformed to my foot so perfectly over time.

All this is to say: S-Works 6 is a good choice, well worth the cash.

aaronmcd 08-29-17 01:45 PM


Originally Posted by Harlan (Post 19825441)
For posterity, what's your saddle height?

From the ground around 37 1/4"
Bottom bracket drop is 68 mm if it's the same as the latest model.
Assuming 73 degree seat tube, BB to saddle is ~28"

I'm surprised I've never measured this. I found 20 data points of rider height vs saddle height from various forums on the web, and scaled them all to 5'-10". The average saddle is almost 2" higher than mine! :eek:

It's no wonder I can't get a low position on the bike :lol:

Btw, I finally went ahead and bought the Rotors. They said i can exchange cranks after trying them, but I suspect I'd rather ride for at least a few months. One ride won't be enough unless it's REALLY bad.

Harlan 08-29-17 03:08 PM


Originally Posted by aaronmcd (Post 19826750)
From the ground around 37 1/4"
Bottom bracket drop is 68 mm if it's the same as the latest model.
Assuming 73 degree seat tube, BB to saddle is ~28"

I'm surprised I've never measured this. I found 20 data points of rider height vs saddle height from various forums on the web, and scaled them all to 5'-10". The average saddle is almost 2" higher than mine! :eek:

It's no wonder I can't get a low position on the bike :lol:

Btw, I finally went ahead and bought the Rotors. They said i can exchange cranks after trying them, but I suspect I'd rather ride for at least a few months. One ride won't be enough unless it's REALLY bad.

I wouldn't look at total height vs saddle height. I'm 5'9.5" and run a 70cm bb->saddle height, somewhat forward. Setback also comes into the equation, as well riding style. I like to err on the side of too low. It's comfortable for me to move around the saddle between climbing and on the rivet. I've got stubby little legs. It's comical that I can't even get my saddle low enough on some bikes I've looked at for sale. I use 172.5s because that's what I've got. I do have a set of 167.5 Campy cranks that I might try out on a winter beater to see how I like the length. I'd be willing to bet the different between the crank length is dwarfed by the cleat changes I've made recently (moved back).

Ttoc6 08-29-17 04:06 PM

https://www.instagram.com/p/BYY8iEFAru9/

Looks cool. I'll get into tting eventually.

aaronmcd 08-29-17 04:07 PM


Originally Posted by Harlan (Post 19826991)
I wouldn't look at total height vs saddle height.

I was looking at this as a way of determining if I do in fact have short enough legs to justify my experiment. Turns out I might.


Originally Posted by Harlan (Post 19826991)
I'm 5'9.5" and run a 70cm bb->saddle height, somewhat forward. Setback also comes into the equation, as well riding style. I like to err on the side of too low. It's comfortable for me to move around the saddle between climbing and on the rivet.

I also move around for climbing vs. TT off the front. I feel like my saddle is low enough for this, but not crazy low. One season I had it shoved all the way forward and a tad (nothing like the 2" I cited) higher. It was a way of compensating and getting more aero, but I moved it back, preferring to have the option for better traction and climbing position as required (for a while I shifted it back and forth, but that was a pain).


Originally Posted by Harlan (Post 19826991)
I've got stubby little legs. It's comical that I can't even get my saddle low enough on some bikes I've looked at for sale. I use 172.5s because that's what I've got. I do have a set of 167.5 Campy cranks that I might try out on a winter beater to see how I like the length. I'd be willing to bet the different between the crank length is dwarfed by the cleat changes I've made recently (moved back).

If I finally buy shoes that fit (width) I'll probably also move my cleats back a tad automatically because the shoes won't be as long. May move the saddle forward a bit but not as crazy as I had it a couple years ago. I'm all but resigned to never being able to hang on climbs longer than 2 to 4 minutes by now.

topflightpro 08-29-17 06:47 PM

Maybe you can get with one of the guys local to you - MattM or Fudgy to help you figure out the fit on your bike?

mattm 08-29-17 10:16 PM


Originally Posted by topflightpro (Post 19827480)
Maybe you can get with one of the guys local to you - MattM or Fudgy to help you figure out the fit on your bike?

[MENTION=349187]aaronmcd[/MENTION] and I are on the same team - there’s a lot I’d change with his fit, but he wouldn’t listen to me anyway!

aaronmcd 08-30-17 02:31 PM


Originally Posted by topflightpro (Post 19827480)
Maybe you can get with one of the guys local to you - MattM or Fudgy to help you figure out the fit on your bike?

Matt would likely tell me to do whatever he does and ignore all physiological differences.

Fudgy would attempt some joke about my fit and then fish for compliments on his TT position.

The one so-called professional fit I got was a ridiculous waste.

I'd listen to pretty much anyone who gives me a reason for whatever they tell me. Hell, I'll listen regardless, but I may roll my eyes if it sounds bogus or the reason is "muh authoritay" or "but cyclists have always done it this way".

TheKillerPenguin 08-30-17 03:06 PM

You should try platform disco cleats. Just IMO.


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