RotorCrank Questions - Gary

Triathlon Forum
1

Gary or anyone,

  1. Can RotorCranks Double be used with a Campy Drivetrain?

  2. Is there a weight limit on the RotorCrank Ti Double?

  3. Are there any Los Angeles dealers and/or installers?

  4. The Aero 56 suggests the 44 inner, can a 42 inner be used instead?

  5. Anyone recently win a Tri or TT event using RotorCranks?

2

Good questions!

1) Can RotorCranks Double be used with a Campy Drivetrain?

yes

2) Is there a weight limit on the RotorCrank Ti Double?

no

3) Are there any Los Angeles dealers and/or installers?

you can order them directly through us at www.rotorcranks.com (free FedExshipping), or any bike shop, as well as Rock N Road Cyclery in Missino Viejo who installed Bjorn’s - and other customer’s systems, they are a top pro level shop, Matt Ford (owner) is the CA state TT champion for MA 35-39 this year. Any pro level shop can install them.

4) The Aero 56 suggests the 44 inner, can a 42 inner be used instead?

yes, I use 55/42 … Joe Peterson (racing RAAM right now on Rotors) uses a monster 63/44.

5) Anyone recently win a Tri or TT event using RotorCranks?

Hmmm, this fast guy named Olaf won a little race in Brazil recently. And some other guy named Sergio rides pretty quick on them. Kevin McNulty won the SCNCA California state championships TT last month, and is racing RAAM right now on Rotor Cranks.

3

Is the only difference between the Steel and Ti the spindle?

Thanks for all of the info.

4

Yes, 80g weight difference, both models work exactly the same.

5

Try’em, you’ll love 'em.

I have the 2004 model on my training bike and the 2005 ti model on my racing bike. I can’t tell a difference, once I moved both sets to the same setting.

6

The Campy Front D is spec’d at a max of 54t, how do people handle larger size outer rings?

7

I have one rider who uses a 63T outer chainring with a Dura-Ace front derailleur. I am certain there is a way to use a larger chainring than 54T with Campy.

Gary Tingley

RotorCranks.com

8

Did he have to modify the bike or the front D to make it fit?

9

Gary,

Has anybody measured the additional power loss in the drivetrain with Rotors? I’m sure it’s small, but how small?

I’m still curious about these cranks…

Rick

10

Hi Rick

I have wondered that myself. It seems as though the low friction at about 90 RPM’s is quite likely negligible. I am getting a couple sets of SRM cranks for measuring and testing the new Q Rings vs round rings, and I also use a Powertap Pro with Rotor Cranks. Over the next year or so I will be on several bikes, using SRM cranks with round chainrings, SRM with Q-Rings, and standard Rotor Cranks with Powertap Pro, plotting all the data I can collect. Hopefully I will be able to collect some meaningful data.

  • Gary