Best option for BB30 to GXP conversion (SS Evo frame)
Moderator: robbosmans
Hi,
Just ordered a super six evo (2015) frameset and wanted to keep using my rotor power2max cranks which are GXP standard. In my old caad 10 I used the wheels manufacturing 'cups' which sit externally but they creaked a lot.
Has there been any advances in tech or am I better off selling the rotor cranks and using the force 22 cranks that will come with the groupset with the addition of a power2max spider?
Cheers
Just ordered a super six evo (2015) frameset and wanted to keep using my rotor power2max cranks which are GXP standard. In my old caad 10 I used the wheels manufacturing 'cups' which sit externally but they creaked a lot.
Has there been any advances in tech or am I better off selling the rotor cranks and using the force 22 cranks that will come with the groupset with the addition of a power2max spider?
Cheers
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Check your information. I'm not sure any Rotor cranks have ever used a GXP standard. GXP is SRAMs design that uses a step down to 22mm in the axle at the non-drive side bearing. I thought Rotor was more like Shimano/FSA in having a straight 24mm axle?
Either way - I've had good success with the Wheels Manufacturing 'delrin' universal adaptor if you want the cheap option or the Praxis Works bb30 adaptor bottom bracket if you want to spend more money on something nicer (for either shimano or gxp depending on which you actually need).
Either way - I've had good success with the Wheels Manufacturing 'delrin' universal adaptor if you want the cheap option or the Praxis Works bb30 adaptor bottom bracket if you want to spend more money on something nicer (for either shimano or gxp depending on which you actually need).
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- Joined: Thu Nov 12, 2015 4:04 pm
VCRC Bike has several different direct adaptors so it's all one piece. I've been using them for several years on several bikes to share my stages PM on sram GXP cranks. Haven't had one fail yet including 3 years of use on my CX bike.
http://www.vcrcbike.com/Ceramic_Convers ... _s/117.htm
http://www.vcrcbike.com/Ceramic_Convers ... _s/117.htm
Praxis does have a GXP conversion for BB30. I had one installed on my CAAD10 when I was using a Quarq Elsa. I switched over to a P2M, and now use their standard conversion BB (Shimano). Highly recommend.
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As many people post praxis, there is an equal amount who post negatively about them. Kogel. Find me a thread that has anything negative about them. I am running two PF30 BB. One gxp, and one shimano. Both flawless.
I would also like to recommend VCRC. Best BBs I have ever used, and they\ve been in business for over 10 years. A lot of new companies pop up each year, which is fine, but vcrc offers support like I've never experienced from other companies. A lot of times the owner will send out free replacment parts to keep you going, when I thought I needed a full rebuild or new BB. I have also used Kogel, that are good, but they are still such a new company I want to wait it out. My shop likes VCRC, Ceramic Speed, Enduro and F1 Ceramic for performance, longevity, and ease of dealing with from a dealer/customer point of view.
Necro-bump... Anyone have any comments abou the Wheels Manufacturing delrin adapters? In my case it would be for GXP cranks on a Ridley Helium SLX with PF 30 bearings already pressed into the frame.
These are the ones I'm thinking of:
https://wheelsmfg.com/bb-pf30-universal ... isiQfxn8mY
These are the ones I'm thinking of:
https://wheelsmfg.com/bb-pf30-universal ... isiQfxn8mY
Ridley Helium SLX - RIP https://weightweenies.starbike.com/for ... lit=ridley
Scott Foil - current viewtopic.php?f=10&t=173046&p=1813155#p1813155
Scott Foil - current viewtopic.php?f=10&t=173046&p=1813155#p1813155
Awful.
C-Bear PF30-GXP-R. Around £100 and no crappy spacers / adapters needed.
https://www.c-bear.com/en/products/bott ... 0-sram-gxp
C-Bear PF30-GXP-R. Around £100 and no crappy spacers / adapters needed.
https://www.c-bear.com/en/products/bott ... 0-sram-gxp
SL8 S-Works Project Black - 6.29kg
IG: RhinosWorkshop
IG: RhinosWorkshop
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Awful, as in they creak, are loose etc etc? Or awful as in there's more elegant solutions out there?ryanw wrote: ↑Wed Jan 20, 2021 5:16 pmAwful.
C-Bear PF30-GXP-R. Around £100 and no crappy spacers / adapters needed.
https://www.c-bear.com/en/products/bott ... 0-sram-gxp
Ridley Helium SLX - RIP https://weightweenies.starbike.com/for ... lit=ridley
Scott Foil - current viewtopic.php?f=10&t=173046&p=1813155#p1813155
Scott Foil - current viewtopic.php?f=10&t=173046&p=1813155#p1813155