i keep busting chainring bolts
01-05-11 | 09:23 PM
#1
Thread Starter
sɹɐʇsɟoןןnɟsʇıbɟɯo
Joined: Oct 2010
Posts: 3,986
Likes: 0
From: seattle, too many links
Bikes: fixed gear recumbent trike
i keep busting chainring bolts
any idea why. its starting to drive me
edit: while riding D:
01-05-11 | 09:33 PM
#3
GONE~
Joined: Apr 2010
Posts: 6,747
Likes: 0
I bet you're using aluminium chairing bolts, I've busted a few of those in the past and switching to steel bolts took care of that issue.
If you're using steel bolts already, then I think you're way too gnarly for your sweet fixies.
If you're using steel bolts already, then I think you're way too gnarly for your sweet fixies.
01-05-11 | 10:08 PM
#4
Thread Starter
sɹɐʇsɟoןןnɟsʇıbɟɯo
Joined: Oct 2010
Posts: 3,986
Likes: 0
From: seattle, too many links
Bikes: fixed gear recumbent trike
stele bolts!
1/8th inch chainring (brand, and size)
sugino messenger crankset
this was the 4th one i busted today in a matter of months
i am a big guy, 6'3" 225.. too much mang for the sw8 fixie
1/8th inch chainring (brand, and size)
sugino messenger crankset
this was the 4th one i busted today in a matter of months
i am a big guy, 6'3" 225.. too much mang for the sw8 fixie
01-05-11 | 10:31 PM
#5
Bike Hoarder
Joined: Jan 2011
Posts: 154
Likes: 0
From: Melbourne, Australia
Bikes: 80's Graecross Courier Fixie, 2010 Bauer Suburban, 1988 Thruster 300 Volt BMX
i think you need to stop riding for about 6 months... clearly your quads have become man mountains of meat and muscle and have the force to smash high-tensile steel bolts...
01-05-11 | 10:39 PM
#6
I'm Carbon Curious
Joined: Aug 2005
Posts: 2,190
Likes: 1
01-05-11 | 10:59 PM
#8
Constant tinkerer
Joined: May 2010
Posts: 8,040
Likes: 156
From: Madison, WI
(In all seriousness, get some steel bolts.)
01-05-11 | 11:22 PM
#9
Oh, you know...
Joined: May 2009
Posts: 2,834
Likes: 0
From: DC
Bikes: '74 Schwinn Sports Tourer (Polo), S-Works E5 Team Festina (Chorus 11), Trek 2200 Bonded Carbon (Fixed), Trek 920 (7 speed IGH), Chesini Olimpiade SL (1x7)
Clean / grease / tighten your chainring bolts once a month or so. Loose bolts = broken bolts.
01-05-11 | 11:23 PM
#10
moving target
Joined: Oct 2006
Posts: 2,952
Likes: 156
From: birmingham, al
Bikes: looks like a specialized crux now
Take your chain ring off and make sure it isn't warped.
If it is bent then bolt is not going on far enough, and they will eventually break.
Also clean your ring and the bolt holes before you put the bolts in, and tighten them properly like several people have noted.
And don't just take replace the one bolt, take them off and replace them all and tighten them at the same time. In a star pattern like you would a car.
If it is bent then bolt is not going on far enough, and they will eventually break.
Also clean your ring and the bolt holes before you put the bolts in, and tighten them properly like several people have noted.
And don't just take replace the one bolt, take them off and replace them all and tighten them at the same time. In a star pattern like you would a car.
01-05-11 | 11:31 PM
#11
I'm Carbon Curious
Joined: Aug 2005
Posts: 2,190
Likes: 1
Take your chain ring off and make sure it isn't warped.
If it is bent then bolt is not going on far enough, and they will eventually break.
Also clean your ring and the bolt holes before you put the bolts in, and tighten them properly like several people have noted.
And don't just take replace the one bolt, take them off and replace them all and tighten them at the same time. In a star pattern like you would a car.
If it is bent then bolt is not going on far enough, and they will eventually break.
Also clean your ring and the bolt holes before you put the bolts in, and tighten them properly like several people have noted.
And don't just take replace the one bolt, take them off and replace them all and tighten them at the same time. In a star pattern like you would a car.
01-05-11 | 11:46 PM
#12
モㄥ工匕モ 爪モ爪乃モ尺
Joined: Feb 2010
Posts: 2,135
Likes: 0
From: LA San Gabriel, California
Bikes: Custom frame
Make sure when you put them on,
torque them down in the star pattern, Start with one. And draw a star. That way you apply even pressure on every bolt.
I forgot how many pound inches they are supposed to be torqued at.
I'll tell you when i see the chart at the shop.
torque them down in the star pattern, Start with one. And draw a star. That way you apply even pressure on every bolt.
I forgot how many pound inches they are supposed to be torqued at.
I'll tell you when i see the chart at the shop.
01-06-11 | 12:23 AM
#13
Thread Starter
sɹɐʇsɟoןןnɟsʇıbɟɯo
Joined: Oct 2010
Posts: 3,986
Likes: 0
From: seattle, too many links
Bikes: fixed gear recumbent trike
i pound inches all night long
01-06-11 | 04:14 PM
#17
Thread Starter
sɹɐʇsɟoןןnɟsʇıbɟɯo
Joined: Oct 2010
Posts: 3,986
Likes: 0
From: seattle, too many links
Bikes: fixed gear recumbent trike
i break tines of forks when i eat.
am now swapping all bolts in star pattern scheme.
i'll even remove them in a star pattern, just upside down
am now swapping all bolts in star pattern scheme.
i'll even remove them in a star pattern, just upside down
01-06-11 | 04:20 PM
#18
Senior Member
Joined: Sep 2009
Posts: 9,948
Likes: 400
From: PHL
Bikes: Litespeed Catalyst, IRO Rob Roy, All City Big Block
Be sure to Hail Satan while you do it.
01-06-11 | 05:14 PM
#19
Senior Member
Joined: Jan 2006
Posts: 2,671
Likes: 0
From: East coast
Bikes: Specialized Tarmac Expert, Cannondale R700, Specialized Langster, Iron Horse Hollowpoint Team, Schwinn Homegrown
