OhGizmo! - Latest Comments in OhGizmo! » Archive » Offset Bike Cranks, Tour De France Here I Come

Re: OhGizmo! » Archive » Offset Bike Cranks, Tour De France Here I Come

RoadRaven — Thu, 17 Apr 2008 03:10:33 -0000

Just been searching for other people's opinions on RotorCranks and I know this is an old thread... my apologies for bumping it, but I do have an opinion that may be of interest
I have just recently had 175mm Rotors put on my time trial bike. Recently as in yesterday. I rode for 20minutes on them yesterday, and 41 minutes on them this evening. I like them, I liked them after about 5 minutes. If I likened it to moving by foot... its like you are skiing rather than skating... one solid fluid movement. I climbed the small rises in my big chain ring when on my previous cranks I would usually change into the smaller.
Down one hill into a flat where on my previous set up I could get up to about 58kph and maintain about 50-55kph for 300metres or so before the next rise, I got up to nearly 63kph and maintain over 56kph on the short flat.
On false flats where I normally, with effort, bike at around 16-18kph... suddenly I was going no lower than 17.5kph - and i wasn't even trying hard.
I'm am impressed. I like them. I am looking forward to my next time trial to try them out in a race situation on a known course.
I think you have to try them before you judge them...

And as for why we don't see rotors in high profile races... ever heard of sponsership? Those boys don't necessarily ride the best bike or have the best sundry equipment. They ride the gear their sponsers provide for them. Simple as that.

Re: OhGizmo! » Archive » Offset Bike Cranks, Tour De France Here I Come

Heel — Sun, 16 Mar 2008 05:52:19 -0000

Re: OhGizmo! » Archive » Offset Bike Cranks, Tour De France Here I Come

Arnie — Sat, 15 Mar 2008 21:09:06 -0000

Re: OhGizmo! » Archive » Offset Bike Cranks, Tour De France Here I Come

July — Sat, 15 Mar 2008 18:55:03 -0000

Re: OhGizmo! » Archive » Offset Bike Cranks, Tour De France Here I Come

Neo — Sat, 15 Mar 2008 14:10:59 -0000

Re: OhGizmo! » Archive » Offset Bike Cranks, Tour De France Here I Come

name — Thu, 10 Jan 2008 17:46:55 -0000

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Re: OhGizmo! » Archive » Offset Bike Cranks, Tour De France Here I Come

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Re: OhGizmo! » Archive » Offset Bike Cranks, Tour De France Here I Come

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Re: OhGizmo! » Archive » Offset Bike Cranks, Tour De France Here I Come

Will — Fri, 14 Sep 2007 19:46:46 -0000

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Re: OhGizmo! » Archive » Offset Bike Cranks, Tour De France Here I Come

Peter — Fri, 23 Feb 2007 20:39:41 -0000

I have a set and they are really for Triathlon and not roadies.

I ride in B grade at the local bike races and at Ironman have done 5:10 on normal cranks.

The following year I did 4:50 BUT is was so much fresher getting off the bike to run the 42K.

Basically what I am getting at is if you are doing 180K or 90 time Trials they are great.

If you are in a pack you might as well save your money and ride normal cranks. Unless you always plan to do break aways and actually stay away.

Cheers

Re: OhGizmo! » Archive » Offset Bike Cranks, Tour De France Here I Come

y3QEFfY2WnbrijrA — Sun, 10 Dec 2006 23:01:26 -0000

OhGizmo! ? Archive ? Offset Bike Cranks, Tour De France Here I Come

Re: OhGizmo! » Archive » Offset Bike Cranks, Tour De France Here I Come

Joan — Fri, 08 Dec 2006 16:58:04 -0000

Hello everyone! Nice site!Many thanks!?

Re: OhGizmo! » Archive » Offset Bike Cranks, Tour De France Here I Come

Sarah — Thu, 07 Dec 2006 10:15:43 -0000

Hello everyone! Nice site!Many thanks!

Re: OhGizmo! » Archive » Offset Bike Cranks, Tour De France Here I Come

Ann — Wed, 06 Dec 2006 16:49:41 -0000

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Re: OhGizmo! » Archive » Offset Bike Cranks, Tour De France Here I Come

tessitori — Tue, 11 Apr 2006 14:09:14 -0000

I agree that there need to be further studies on this matter, Shimano tried it with Biopace in the late 80's, there are Rotorcranks, and PowerCranks. Each does something quite unique but I feel that PowerCranks is the most complete system. Why else would Di Luca, Bettini, Hincapie and others such as Magnus be training on them and even use them on their rest days in the Tour or the Giro? http://www.velonews.com/tour2005/tech/articles/...

Re: OhGizmo! » Archive » Offset Bike Cranks, Tour De France Here I Come

Anonymous Cyclist — Tue, 11 Apr 2006 09:01:48 -0000

It may "remove" the dreaded dead spot, but as every cyclist should know, don't fix what isn't broken, the use of good "ankle-ing" in a perfect pedal stroke already has very little dead spot in it. It would be very cool to try out, but I would rather stick to my fix arms - especially when in the mountains, I like a little leg rest.

Re: OhGizmo! » Archive » Offset Bike Cranks, Tour De France Here I Come

Johnny T — Thu, 06 Apr 2006 01:59:25 -0000

Great - it's 1985 all over again. It's interesting that they don't list the weight on their website... I think I could put the $1000 cost to better use than this crap!

Re: OhGizmo! » Archive » Offset Bike Cranks, Tour De France Here I Come

pigplopp — Thu, 06 Apr 2006 00:12:05 -0000

i dont understand how these things work. but screw them, offset cranks... my behind. anyway adults shouldnt be riding bikes. must be gays. unless you lost u license b/c of dui. then i m not mad.

Re: OhGizmo! » Archive » Offset Bike Cranks, Tour De France Here I Come

Anonymous — Tue, 04 Apr 2006 23:37:58 -0000

how come all the video links in here go to shite?Biopace cranks - those oval things hurt my knees there was a sudden dropout on the downstroke that created problems for me. I was riding eight hours a day at the time

Re: OhGizmo! » Archive » Offset Bike Cranks, Tour De France Here I Come

ReadArticleB4Commenting — Tue, 04 Apr 2006 11:18:36 -0000

It seems that most of the people who commented negatively didnt really look into this product before commenting. "Hmm...looks like a set of expensive cranks that have one arm offset from the other. Must suck." Check out the video from the site and then see if it makes more sense. If you still don't understand why this is an advantage, then you probably aren't the type of person who woudl even be interested in a product like this and in that case, why comment at all. Just becuase you don't understand something doesn't mean it doesn't work. [/rant]

Re: OhGizmo! » Archive » Offset Bike Cranks, Tour De France Here I Come

Spangemonkee — Mon, 03 Apr 2006 22:31:47 -0000

Animation of it working
http://www.rotorbike.com/eng/simulador_RS4_RD2_...

Re: OhGizmo! » Archive » Offset Bike Cranks, Tour De France Here I Come

Dylan — Mon, 03 Apr 2006 20:12:20 -0000

Ryan is an idiot. This crank sucks - it widens the dead spot for half a stroke.

Re: OhGizmo! » Archive » Offset Bike Cranks, Tour De France Here I Come

Nick Peters — Mon, 03 Apr 2006 16:27:57 -0000

BullPlop!

Re: OhGizmo! » Archive » Offset Bike Cranks, Tour De France Here I Come

gerwitz — Mon, 03 Apr 2006 15:29:28 -0000

Shame on me for commenting without really looking into them much. I thought these were cranks that had some "play" to shift the deadspot, but rather they are COMPLETELY independent of each other.

After watching the demonstration videos, I take back my earlier openness to trying them. Decoupling my legs does not look like a good idea at all. Nor does being forced to pull and push on every stroke on long rides; these would hamper my ability to shift muscle groups.

Re: OhGizmo! » Archive » Offset Bike Cranks, Tour De France Here I Come

gerwitz — Mon, 03 Apr 2006 15:22:46 -0000

Just because traditional cranks can exist in a vertical alignment doesn't mean they're "dead". I see these as allowing an untrained piston stroke to gain some of the advantage of a trained stroke.

I'd be willing to try them out (I even owned a pair of those Shimano oval cranks), but call me a skeptic. I don't feel a lull in my round chainring and these look like they're feel imbalanced.