Power2max explains Rotor 3D vs 3D+

[@PeakTorque]

Are the 3d+ and 3d24 P2M spider units interchangeable? Or are they a different spline? I have a 3d24 and 3d+ crankset.

[@teunw7056]

Got an answer already?

[@JLB-eu3wk]

So the question is. Does p2m work for both w/o the need of anything else?

[@r0m0pr0]

So are the chainrings and spider from the 3D+ and the 3D30 the same or at least compatible?

[@SamGibson]

The easiest way to tell them apart is the '+' on the crank arm surely?

[@Garrick42]

I have an OEM 2016 Cervelo Rotor crank that only says "3D" on the arm (no "+"), but it's actually a 3D30, which has a 30-mm axle and the crank bolt on the drive side (same as the 3D+ shown here). Except for the bolt location and the lack of a pinch bolt on the NDS crank arm, mine looks identical to the 3D with the 24-mm axle depicted in this video.

[@keeswitziers3764]

@@Garrick42 same here on my Merida Reacto 7000E

[@MarcLangille]

@@Garrick42 same here. Have a 2016 Cervelo S3, same OEM Rotor crank with only "3D", but the crank bolt is on the drive side. Otherwise I had no idea it was a 3D30 crankset. Unless I asked my LBS. Good information to know after watching the video, reading your comment. Thanks!

[@jeffsoriano2354]

What's the difference between 3D AND 2D

[@gibsonlespaul5709]

If you guys are looking for testers please let me know! I'm a 19 year old college cyclist that would love to have your product on my bike