Stripped thread on crank

Grievesy

Active Member
right then. The other day while commuting to work i noticed a wobble in my left pedal about a mile in. This got progressively worse until around the 5 mile mark i pulled over and the pedal just fell off when i took my foot off it. I checked the crank and the thread has been completely stripped. I have no idea how this has happened as ive not touched the pedals since the lbs put them on around a year ago. Obviously im going to need a new crank however i cant find another SRAM S SERIES left hand crank only. So i was thinking of upgrading to SRAM Rival. I run a 1x11 setup so its not as expensive as some would think. I currently have 42t at the front and i find as soon as it comes to any downhill i spin out right away and wouldnt mind some more teeth for a higher top speed. Question is ive found one that has 50t. Is this too much of an increase or should i just buy a 44-46t?

Also. All SRAM are compatible yes? I am assuming so. And ill be youtubing how to fit it myself. Bugger the lbs. Should i do the bottom bracket at the same time? Bike is only a year old but i commute on it daily. Prob done 2k miles.

Thanks in advance for any advice.
 

Ajax Bay

Veteran
Location
East Devon
ive not touched the pedals since the lbs put them on around a year ago
:laugh::laugh:
More normal for people to complain they can't take the pedals off after they haven't "touched" them for a year.
Going from 42t to 50t will mean you spin out at a much higher speed but makes your lowest gear much 'longer' - will not be an issue during a commute. You can do the math.
 
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T.M.H.N.E.T

Disc brakes - Stopping things since 1902
Location
Northern Ireland
Yeah it'll have the GXP bottom bracket, might as well take the bb out and regrease it while you're there

re:teeth - dunno.. I have the 2x11 version ^_^
 

silva

Well-Known Member
Location
Belgium
I assume this is about a singlespeed or fixed gear?
42 to 50 is a serious gear increase. If you're used to 42 it's quite likely that a WTF text balloon will appear above your head at the first uphill.
 

T.M.H.N.E.T

Disc brakes - Stopping things since 1902
Location
Northern Ireland
That's messy but repairable on the off chance a local shop has a 9/16-20 helicoil kit and a 5/8-24 LH tap
 
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