dudigrinfeld
Active Member
Anyone can address what stiffer and lighter between the 2? After all with rotor press fit caps you can use both on a frame with bb86 shell. What would you go for and why?
Thanks
Thanks
Rotor crank 30mm or 24mm axle (3D+ or 3D) what's better?
- Thread starter dudigrinfeld
- Start date
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Rob3rt
Man or Moose!
- Location
- Manchester
I would get the 3D+ so I could swap it between both of my bikes with ease without adapters.
As for lighter, check the specs, they will tell you. Stiffness wise, probably not a lot in it.
As for lighter, check the specs, they will tell you. Stiffness wise, probably not a lot in it.
OP
OP
dudigrinfeld
Active Member
So you have two bikes with BB30 shell? I have one with BB86..mmm..! But form your reply I guess it's fine with the using of an adapter to use both types (4130 or 4124) even though my bike are not pure BB30 shell?
Rob3rt
Man or Moose!
- Location
- Manchester
Rotor make adapters that fit pretty much any of their cranks onto any frame, budget and the degree to which you are a weight weenie will probably be the largest considerations if you need not worry about swapping between bikes and potentially having different adapters on each bike.
As for me having 2 bikes with BB30 bottom bracket shells, yes, you are correct, both of my geared bikes have a BB30 bottom bracket, so I would choose a BB30 crankset so I can swap it around easily. Rather than buying 2 expensive cranksets (if loaded) or 2 cheap cranksets (if budget limited), I would buy 1 of the best I could afford and swap it (best performance for least cash). This is what I do with my power meter because I definitely can not afford 2 of those.
As for me having 2 bikes with BB30 bottom bracket shells, yes, you are correct, both of my geared bikes have a BB30 bottom bracket, so I would choose a BB30 crankset so I can swap it around easily. Rather than buying 2 expensive cranksets (if loaded) or 2 cheap cranksets (if budget limited), I would buy 1 of the best I could afford and swap it (best performance for least cash). This is what I do with my power meter because I definitely can not afford 2 of those.
OP
OP
dudigrinfeld
Active Member
Btw I wanted to ask if it is necessary to use an adapter of Rotor for their crank or I can use any adapter which fit my bb86 shell?
I.e I am using now the adapter of Shimano inside my bottom bracket (86.5mm shell width on 41mm dimeter), that means I can't use neither the 24mm axle of Rotor nor the 30mm with this adapter?
I.e I am using now the adapter of Shimano inside my bottom bracket (86.5mm shell width on 41mm dimeter), that means I can't use neither the 24mm axle of Rotor nor the 30mm with this adapter?
jdtate101
Ex-Fatman
- Location
- Boring Birmingham
I have the 3D and can honestly say it's as stiff as any Dura-Ace crank I've used. I'm not sure there will be a huge difference between the 3D and 3D+, so really the choice would be down to which is easier to get an adapter for and fit to your bike. They are really nice cranks and the Q-Rings are fab.
I went for the 3D as it's a 24mm axel which is exactly the same as Shimano use, so I could swap out my DA for Rotor without any mucking about with a new BB or adapters.....just a straight swap.
I went for the 3D as it's a 24mm axel which is exactly the same as Shimano use, so I could swap out my DA for Rotor without any mucking about with a new BB or adapters.....just a straight swap.
