Lightest Dependable Crank-Based Power Meter

Discuss light weight issues concerning road bikes & parts.
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jbrandt
Posts: 9
Joined: Tue Mar 02, 2010 3:47 pm

by jbrandt

Has anyone figured out what the lightest dependable power meter is? I am currently running a 130 BCD SRM with Cannondale SiSl2 crankarms on my Specialized Allez Sprint. I have a new Tarmac frame on the way and I am thinking I will try 52/26 chainrings so I need a 110BCD spider. Decided I would see what good options are out there.

lactatehate
Posts: 135
Joined: Mon Aug 23, 2004 12:50 pm
Location: UK

by lactatehate

Doubt you can go wrong with Power2Max spider on a Specialized FACT carbon crank. Barring THM crank on a powermeter spider doubt you'll find lighter/stiffer combination.

D.

by Weenie


NiFTY
Posts: 1148
Joined: Sat May 26, 2012 11:26 pm

by NiFTY

If dependable includes single side power options then a cannondale sisl2 with spidering and a 4iiii on the nds eould probably be lightest. Sram exogram bb30 and stages carbon nds would run a close second. (My 1300bcd sram bb30 + stages + ocp3 q rings 53/39 + chainring bolts is 559grams - with smaller bcd and lighter rings you might dip under 500g.)
Evo 5.02kg SL3 6.77 Slice RS 8.89 viewtopic.php?f=10&t=110579" onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;

evan326
Posts: 480
Joined: Wed Sep 14, 2016 8:51 pm
Location: RVA,USA

by evan326

I can testify the 4iiii is light and dependable. My SiSL2 DS with hollowgram si/4iiii on the NDS, and 52/36 spidering sl is 546g for the complete crank.

uraz
Posts: 86
Joined: Thu Dec 12, 2013 9:48 pm

by uraz

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DOUG
Posts: 192
Joined: Thu Mar 31, 2016 9:54 pm

by DOUG

I can confirm the SiSl2 Crank and 4iiii + Spidering combo is reliable and probably your lightest option AFAIK. I have been running the same setup on my CAAD10 and now my SuperSix and it hasnt skipped a beat, admittedly its only be a few months but Im happy with it so far.

RyanH
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Joined: Tue Jan 17, 2012 4:01 pm
Location: Los Angeles, CA
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by RyanH

Subtract 145g from this for the pedals since I was too lazy to remove them:
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Strava
Current Stable. The Snob Machine
The Ex's. LS Siena: 6.21kg | Parlee Z5 SLi: 5.9kg | LS Xicon: 5.76kg | C59: 5.7kg | Cervelo R5ca: 5.09kg | Fuji Altamira SE - 6.2kg | Scott Foil - 6.2kg | Evo - 5.18kg | LS Classic - 6.7kg | The Crumpton - 5.9kg

by Weenie


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