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PostPosted: Sat Jan 07, 2017 7:27 pm 
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Posts: 970
Considering switching out the Rotor 3DF chainset that came with an Ultegra S5 for a SRAM Red one I really like and is discounted at the moment:
http://www.wiggle.co.uk/sram-red-exogra ... 60736764uk

£259 seems decent. Maybe can get some cash for the Rotor one, it's only got 15 miles on it. Want to go eTap eventually so this would be a nice start.

This is the right chainset for SRAM eTap? wondering why it's cheap at Wiggle and pricey everywhere else. Hope it's not an old version or something..

Thoughts?


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Posted: Sat Jan 07, 2017 7:27 pm 


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PostPosted: Sat Jan 07, 2017 8:51 pm 
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Ah wait. That's some weird GXP version. I would need this BB30 version?

https://www.radialcycles.co.uk/sram-red ... AjN98P8HAQ\

Or are they the same but come with different adapters or so? :cry:


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PostPosted: Sat Jan 07, 2017 9:57 pm 
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Does your Cervelo have bbright?
AFAIK the 3DF is a long axle 30mm crank so its not really BB30, and is long enough to fit the spacers to the offset shell.
Not sure if a Sram gxp or bb30 crank spindle is long enough.

Rotors are fine cranks, and if you fancy a powermeter, just the spider is replaced.

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PostPosted: Sat Jan 07, 2017 10:00 pm 
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Yeah it's BBright. Didn't know that about the power meter, which I have been pondering. SRAMs quark one seems out of my budget. So was thinking maybe SRAM Stages at some point on sale.

Going to have a looksie now at Rotor power meter options. To be honest, just love the look of the SRAM Red chainset, so not set in stone.


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PostPosted: Sun Jan 08, 2017 2:39 am 
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Order up a power2max spider for what you have and pass on an "upgrade" to a sram crankset.


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PostPosted: Sun Jan 08, 2017 6:56 am 
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What about Rotor NoQ aero rings? They look sexy and should be compatible with power2max. Current stock rings just don't inspire me, but people say the Rotors don't shift well..


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PostPosted: Sun Jan 08, 2017 7:09 am 
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Yes, that is the correct advice


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PostPosted: Sun Jan 08, 2017 10:46 am 
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The GXP version should fit the S5, it has a longer spindle than the BB30 which defiantly won't fit.

I'd probably keep the Rotor though. I've been very happy with mine, and will eventually get the power2max power meter.


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PostPosted: Sun Jan 08, 2017 10:59 am 
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The GXP version will fit BBright but you'll need a different bottom bracket or adaptor. From memory GXP is 24mm drive side and 21mm on the non drive side. The Rotor one you have in at the moment is a 30mm axle all the way through.

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PostPosted: Sun Jan 08, 2017 7:05 pm 
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Notice you guys aren't recommending Rotors own power meter which I spotted today when searching, Take it that means the power2max is better?


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Posted: Sun Jan 08, 2017 7:05 pm 


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PostPosted: Mon Jan 09, 2017 2:29 am 
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Joined: Sat Nov 21, 2015 3:04 pm
Posts: 338
I use the Inpower, I like it a lot but the P2M is cheaper and can do dual sided power (although it isn't true dual side power measurement), the Inpower is like Stages/4iiii in that it only does left sided power. You could get 2Inpower but that is even more expensive and makes the P2M even better value.


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