Ask your small, random, track-related questions here
#5451
Senior Member
Kaben, a 5 spoke isn't automatically fast.
Here is a 5 spoke that can be had for $500 new and comes in front a rear. Why don't people buy this?
Ask yourself, "If 5-spokes are fast, then why don't triathletes and road TT specialists use them?"
80mm deep lenticular wheels are proven (with wind tunnel "receipts").
Front discs can be very difficult to manage even with moderate wind gusts. They can be helpful in ideal conditions...and detrimental in less-than-ideal conditions (read: make you slower).
I think I'm gonna sponsor a proper scientific study to articulate and enumerate how "fast" a 5 spoke really is. I'm surprised that no one has done this being that the IO is literally the most expensive bicycle wheel on the market at $4,000 USD.
Here is a 5 spoke that can be had for $500 new and comes in front a rear. Why don't people buy this?
Ask yourself, "If 5-spokes are fast, then why don't triathletes and road TT specialists use them?"
80mm deep lenticular wheels are proven (with wind tunnel "receipts").
Front discs can be very difficult to manage even with moderate wind gusts. They can be helpful in ideal conditions...and detrimental in less-than-ideal conditions (read: make you slower).
I think I'm gonna sponsor a proper scientific study to articulate and enumerate how "fast" a 5 spoke really is. I'm surprised that no one has done this being that the IO is literally the most expensive bicycle wheel on the market at $4,000 USD.
I'm just here for the Aerospoke references It's like the early 90's all over again.
Send me an iO and an iO Rio and I'll test them next time I'm in the tunnel.
All the data I've ever seen suggests that for a carbon spoked wheel, 3 is the magic number. (The original dupont/specialized/hed3, the new PRO and H3+, and soon the 3spoke from Aerocoach - maybe the 3G from Mavic as well, but I've never seen any data from them) unless the crazy claims made by the 2spoke company turn out to be true.
Last edited by Morelock; 01-22-19 at 08:01 AM.
#5452
Senior Member
Only in regards to Zipp disc longevity - Another racing on an old Zipp disc; a Zipp Predator which was their first disk before the 1150 and 950. The wheel structure is still great, just needed the hub rebonded to the wheel as the glue can eventually fail. But that is only an issue for a rear wheel given forced from pedaling. In regards to parts availablity, the hubs are simple and any machine shop could make replacements.
PS was also still pursuiting on a set of Fluidisk's!
PS was also still pursuiting on a set of Fluidisk's!
#5453
Senior Member
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Kaben, a 5 spoke isn't automatically fast.
Ask yourself, "If 5-spokes are fast, then why don't triathletes and road TT specialists use them?"
80mm deep lenticular wheels are proven (with wind tunnel "receipts").
Front discs can be very difficult to manage even with moderate wind gusts. They can be helpful in ideal conditions...and detrimental in less-than-ideal conditions (read: make you slower).
Ask yourself, "If 5-spokes are fast, then why don't triathletes and road TT specialists use them?"
80mm deep lenticular wheels are proven (with wind tunnel "receipts").
Front discs can be very difficult to manage even with moderate wind gusts. They can be helpful in ideal conditions...and detrimental in less-than-ideal conditions (read: make you slower).
In the same breath, the FFWD/corima/mavic 5 spoke wheels look bloody fantastic and i do wonder whether i would benefit from the stiffness benefit during sprints. Its dangerous - i am in the process of remortgaging my house so I could get a bit naughty and buy lots of bike parts but i need to keep myself in check and not waste my house equity haha.
Only in regards to Zipp disc longevity - Another racing on an old Zipp disc; a Zipp Predator which was their first disk before the 1150 and 950. The wheel structure is still great, just needed the hub rebonded to the wheel as the glue can eventually fail. But that is only an issue for a rear wheel given forced from pedaling. In regards to parts availablity, the hubs are simple and any machine shop could make replacements.
PS was also still pursuiting on a set of Fluidisk's!
PS was also still pursuiting on a set of Fluidisk's!
#5454
Senior Member
fwiw, the wide/narrow fork crown / aerodynamics gets thrown around some but is largely speculation and doesn't seem to "trend" with the exception of forks designed specifically around a wheel. If memory serves, a lot of this talk came from something Vroomen said many, many years ago about a narrow fork being bad with a trispoke. I believe in that specific context he was talking about the wider (and poorly performing in general) Zipp 3000 trispoke though. There was also an old steel schwinn fork from the 70's that supposedly tested better than any of the (at the time current ~10-15 years ago) aero forks. That makes some sense as while that fork had a wider crown, it was also very flat bladed so minimal frontal area. MDT made a fork that was a similar design (2009 cervelo P3T's for some track team had them)
If you look at GBsquad, even the secret squirrels can't seem to nail down whether wide/narrow is better across the board. (So, just my opinion, but don't let that sway your decision)
If you look at GBsquad, even the secret squirrels can't seem to nail down whether wide/narrow is better across the board. (So, just my opinion, but don't let that sway your decision)
#5455
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Plyos for track
Ask the questions that you were always wondering about but were afraid to ask or that didn't necessitate their own thread.
Wondering what a word means?
Wondering why athletes do seemingly weird things?
Wondering why track equipment is similar but different that road equipment?
Wondering if something is worth the time/hassle/money?
Have a question? Have an answer? Post it here.
Wondering what a word means?
Wondering why athletes do seemingly weird things?
Wondering why track equipment is similar but different that road equipment?
Wondering if something is worth the time/hassle/money?
Have a question? Have an answer? Post it here.
Thanks for all of your help so far
Im now accredited, doing sqt’s and enjoying getting into track and realizing how fast everyone is and how I need to get fitter and lighter, which i’m working on. But loving it 😊
Just a quick question, I’ve read all the info on here about training and i’m lifting and on the bike.
I just wondered if anyone on here is doing plyos (box jumps, jump squats) or has done and if you feel they help with power and acceleration on the bike.
Thanks
Chris
#5456
Lapped 3x
Hi Guys,
Thanks for all of your help so far
Im now accredited, doing sqt’s and enjoying getting into track and realizing how fast everyone is and how I need to get fitter and lighter, which i’m working on. But loving it
Just a quick question, I’ve read all the info on here about training and i’m lifting and on the bike.
I just wondered if anyone on here is doing plyos (box jumps, jump squats) or has done and if you feel they help with power and acceleration on the bike.
Thanks
Chris
And yes, they do help.
#5457
Senior Member
Hey guys, any idea where to looking for 160 or shorter crankset for JIS squaretaper BB?
I don't want to chop and modify it. Thanks.
Or I could simple use new modern BB right away? I doubt about compatible.
Currently use Miche Premato 144bcd JIS sqauretaper BSA threaded (I think).
I don't want to chop and modify it. Thanks.
Or I could simple use new modern BB right away? I doubt about compatible.
Currently use Miche Premato 144bcd JIS sqauretaper BSA threaded (I think).
Last edited by Altimis; 02-02-19 at 08:51 PM.
#5458
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Hey guys, any idea where to looking for 160 or shorter crankset for JIS squaretaper BB?
I don't want to chop and modify it. Thanks.
Or I could simple use new modern BB right away? I doubt about compatible.
Currently use Miche Premato 144bcd JIS sqauretaper BSA threaded (I think).
I don't want to chop and modify it. Thanks.
Or I could simple use new modern BB right away? I doubt about compatible.
Currently use Miche Premato 144bcd JIS sqauretaper BSA threaded (I think).
There are several BMX or fixie cranks that are JIS square taper but they are for 110 BCD chain rings.
https://www.ebay.com/b/Cranksets/109...%7C140mm&rt=nc
You can get a 110 bcd to 144 bcd adapter, but not sure what that will do to the chainline.
Track Parts-ADAPTOR
The only track specific crank set I found was the Rotor ALDHU. It has a 30 mm spindle, but the BB is for BSA 68 shells.
https://rotoramerica.com/products/aldhu-track
If you want a power meter, then you can get the Rotor with a Power2Max spider.
https://power2max.cc/collections/aldhu#
#5459
Senior Member
I went down this rabbit hole last fall looking for sub 165mm cranks.
There are several BMX or fixie cranks that are JIS square taper but they are for 110 BCD chain rings.
https://www.ebay.com/b/Cranksets/109...%7C140mm&rt=nc
You can get a 110 bcd to 144 bcd adapter, but not sure what that will do to the chainline.
Track Parts-ADAPTOR
The only track specific crank set I found was the Rotor ALDHU. It has a 30 mm spindle, but the BB is for BSA 68 shells.
https://rotoramerica.com/products/aldhu-track
If you want a power meter, then you can get the Rotor with a Power2Max spider.
https://power2max.cc/collections/aldhu#
There are several BMX or fixie cranks that are JIS square taper but they are for 110 BCD chain rings.
https://www.ebay.com/b/Cranksets/109...%7C140mm&rt=nc
You can get a 110 bcd to 144 bcd adapter, but not sure what that will do to the chainline.
Track Parts-ADAPTOR
The only track specific crank set I found was the Rotor ALDHU. It has a 30 mm spindle, but the BB is for BSA 68 shells.
https://rotoramerica.com/products/aldhu-track
If you want a power meter, then you can get the Rotor with a Power2Max spider.
https://power2max.cc/collections/aldhu#
Let's alone chainline doubtful. Thanks again.
#5460
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https://rotoramerica.com/collections...ts/bsa30-track
#5461
Senior Member
I have the Miche Monolithic crankset for my daughter in 145mm. But it has the massive PITA 116BCD. Ok for the next year and a half until she ages up and then finding the right chainring for her will likely be a problem
#5462
Senior Member
What type of bottom bracket shell are you trying to fit? The Rotor BSA30 Track bottom bracket fits the standard BSA 68 threaded shell and works with the ALDHU Track crankset and axle.
https://rotoramerica.com/collections...ts/bsa30-track
https://rotoramerica.com/collections...ts/bsa30-track
Thank you very much, I will take a look now.
#5463
Senior Member
Join Date: Aug 2008
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Bikes: Fuji Elite, 3Rensho track, Trek Madone 6.9, Specialized MTB, GT MTB, Cannondale Cad3 fixie
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#5464
Full Member
#5466
Senior Member
Join Date: Aug 2008
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#5467
Senior Member
I don't have enormous dimensions, but they are big just by virtue of my 6'5" frame. I have bibs from Pearl Izumi, Sugoi, DeMarchi, Castelli and Shimano. I had some nice Castelli bibs and accordingly invested in a new pair and the new ones were way tighter for the same size, same model (Velocissimo I think). I have a friend with serious Forsti size legs and he has Champion Systems club kit that fits ok, but he has also removed the gripper bit at the bottom of the leg on some kit to make it a better fit
#5468
Senior Member
I found "the black bibs" to be pretty big compared to my Castelli/Rapha stuff. At least the cham was.
At $40 they aren't too big of an investment if they don't work (and actually really nice bibs if they work for you)
At $40 they aren't too big of an investment if they don't work (and actually really nice bibs if they work for you)
#5469
Senior Member
Any Australian members know what happened to all the ex-national team BT's? Just curious.
#5470
Great at turning left
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I believe they went back to BT, who then repainted them put in a new seatpost and drop outs and sold them on at a discount
#5471
Senior Member
The last men's Professional 5,000 m world championship pursuit race, held in 1992, was won by Mike McCarthy of the USA.
What was his gold medal time?
Thanks
What was his gold medal time?
Thanks
#5472
Senior Member