Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Clydesdales/Athenas (200+ lb / 91+ kg) Looking to lose that spare tire? Ideal weight 200+? Frustrated being a large cyclist in a sport geared for the ultra-light? Learn about the bikes and parts that can take the abuse of a heavier cyclist, how to keep your body going while losing the weight, and get support from others who've been successful.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 04-30-08, 10:51 AM   #1
TrumpetMurph
Senior Member
Thread Starter
 
TrumpetMurph's Avatar
 
Join Date: Feb 2008
Location: Steamboat Springs, CO
Bikes: 2007 Bianchi Via Nirone
Posts: 98
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Uh oh. . .

So, I've probably ridden about 300 miles or so on my clipless pedals. Today I was doing some maintenance on them and realized that when I installed them, I didn't line up the threads on the right side of the pedal correctly, and that the threads where the pedal attaches to the crankarm, as well as the threads on the pedal itself are stripped.

Right now it seems to have a tight grip in the hole, I haven't noticed any slipping or wobbling, but I don't want to get out to mile 15-20 of an out and back and find out that suddenly my right pedal won't function because it isn't tight in the crankarm.

Is there any repair that can be done to remedy this problem, or is the only solution to replace both the pedal and the crankarm? I'm hoping there is a more affordable solution.

Also, would you ride knowing this is an existing condition? Thanks guys!

--TM
TrumpetMurph is offline   Reply With Quote
Old 04-30-08, 11:08 AM   #2
Tom Stormcrowe
Out fishing with Annie on his lap, a cigar in one hand and a ginger ale in the other, watching the sunset.
 
Tom Stormcrowe's Avatar
 
Join Date: Mar 2006
Location: South Florida
Bikes: Techna Wheelchair and a Sun EZ 3 Recumbent Trike
Posts: 16,120
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Talk to your LBS, they may have the tap and dyes required to fix it, with any luck at all.
Quote:
Originally Posted by TrumpetMurph View Post
So, I've probably ridden about 300 miles or so on my clipless pedals. Today I was doing some maintenance on them and realized that when I installed them, I didn't line up the threads on the right side of the pedal correctly, and that the threads where the pedal attaches to the crankarm, as well as the threads on the pedal itself are stripped.

Right now it seems to have a tight grip in the hole, I haven't noticed any slipping or wobbling, but I don't want to get out to mile 15-20 of an out and back and find out that suddenly my right pedal won't function because it isn't tight in the crankarm.

Is there any repair that can be done to remedy this problem, or is the only solution to replace both the pedal and the crankarm? I'm hoping there is a more affordable solution.

Also, would you ride knowing this is an existing condition? Thanks guys!

--TM
__________________
. “He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you.”- Fredrick Nietzsche

"We can judge the heart of a man by his treatment of animals." - Immanuel Kant
Tom Stormcrowe is offline   Reply With Quote
Old 04-30-08, 11:43 AM   #3
BikEthan
JRA.
 
BikEthan's Avatar
 
Join Date: Nov 2007
Location: Boston, MA
Bikes: '07 IRO Mark V, '01 Cannondale Jekyll 3000, '07 Rivendell Atlantis
Posts: 505
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Tom Stormcrowe View Post
Talk to your LBS, they may have the tap and dyes required to fix it, with any luck at all.
What Tom said and here's a bit more detail. They may be able to simply "clean up" the threads by chasing them with a tap. But if not there a way to re-tap the crank arm and then thread in a threaded steel sleeve that has the appropriate threads for your pedal on the inside of it. So basically they'd make the hole bigger and then shrink it back down with this sleeve. Your pedals may be toast but I'd be very surprised if the threads on the pedals were actually damaged. Pedal axles are usually made from chromoly which is substantially harder than aluminum (which is why most cranks are made of).

Here's an example of a crank arm thread repair kit:

http://www.bikemannetwork.com/biking...OOLTHRD/TL1401
__________________
2009 Bike Friday Season Tikit (commuting folder)
2007 Rivendell Atlantis (touring, general riding, errand runner, stuff hauler)
2007 IRO Mark V (SS)
2006 Rockhopper Comp Disc (Icebike)
BikEthan is offline   Reply With Quote
Old 04-30-08, 11:58 AM   #4
TrumpetMurph
Senior Member
Thread Starter
 
TrumpetMurph's Avatar
 
Join Date: Feb 2008
Location: Steamboat Springs, CO
Bikes: 2007 Bianchi Via Nirone
Posts: 98
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Awesome! Thanks guys! I'll bring 'er in this Friday (payday) and see what the LBS can do for me! I appreciate it!
TrumpetMurph is offline   Reply With Quote
Old 04-30-08, 12:48 PM   #5
TrumpetMurph
Senior Member
Thread Starter
 
TrumpetMurph's Avatar
 
Join Date: Feb 2008
Location: Steamboat Springs, CO
Bikes: 2007 Bianchi Via Nirone
Posts: 98
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
one more quick question-- will I be ok riding it until I get it fixed, or will I be better off waiting until its repaired?
TrumpetMurph is offline   Reply With Quote
Old 04-30-08, 12:57 PM   #6
bautieri
Downtown Spanky Brown
 
bautieri's Avatar
 
Join Date: May 2007
Location: Camp Hill, Pennsyltucky
Bikes: 14 Motobecane Phantom Cross Pro 2000 Kona Lana'I
Posts: 2,102
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Eh its held 300 miles so far, I wouldn't worry too much about it.

Any machinist should be able to run a tap and die to fix your threads in the event that the LBS does not wish to do it. Just make sure you inform the machinist of the left hand thread on left crank/petal.
bautieri is offline   Reply With Quote
Old 04-30-08, 01:06 PM   #7
edbikebabe
runnin' down a dream
 
edbikebabe's Avatar
 
Join Date: Jul 2006
Location: Somewhere out there
Bikes: Turner Flux, Orbea Onix Dama.
Posts: 2,764
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I had a friend strip hers - new crank for her!

Hopefully you get lucky & it is fixable.
edbikebabe is offline   Reply With Quote
Old 04-30-08, 01:17 PM   #8
Mr. Beanz
Banned.
 
Mr. Beanz's Avatar
 
Join Date: Dec 2005
Location: Upland Ca
Bikes: Lemond Chambery/Cannondale R-900/Trek 8000 MTB/Burley Duet tandem
Posts: 20,030
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I totally stripped the threads on my crankarm once. The shop where I bought it is a pretty good shop. They installed a HELICOIL into the crankarm. Charged me about $20. Much cheaper than a new crankset. Been about 11,000 miles on the bike with no problems.

Just a note: I did take it to another shop first. Ithought they were a pretty knowlegeable handy shop (shop A). They suggested shop B so some shops may not be equipped to do the repair.
Mr. Beanz is offline   Reply With Quote
Old 04-30-08, 01:51 PM   #9
TrumpetMurph
Senior Member
Thread Starter
 
TrumpetMurph's Avatar
 
Join Date: Feb 2008
Location: Steamboat Springs, CO
Bikes: 2007 Bianchi Via Nirone
Posts: 98
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Just dropped it off at the LBS. They're going to try to tap it first, if that doesn't work, going with a helicoil. It being springtime, though, they're slammed. I'm bike-less for a good solid week!
TrumpetMurph is offline   Reply With Quote
Old 05-01-08, 02:10 AM   #10
breadbin
Senior Member
 
breadbin's Avatar
 
Join Date: Jul 2006
Location: West of Ireland
Bikes: Raleigh 531c, Marin Muirwoods, Brodie Romax
Posts: 666
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
Quote:
Originally Posted by TrumpetMurph View Post
Just dropped it off at the LBS. They're going to try to tap it first, if that doesn't work, going with a helicoil. It being springtime, though, they're slammed. I'm bike-less for a good solid week!
Glad to hear its getting fixed and not so glad to hear you're bikeless. You'll just have to make up for this inactivity when you get it back!
breadbin is offline   Reply With Quote
Old 05-01-08, 05:54 AM   #11
Tom Stormcrowe
Out fishing with Annie on his lap, a cigar in one hand and a ginger ale in the other, watching the sunset.
 
Tom Stormcrowe's Avatar
 
Join Date: Mar 2006
Location: South Florida
Bikes: Techna Wheelchair and a Sun EZ 3 Recumbent Trike
Posts: 16,120
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by TrumpetMurph View Post
Just dropped it off at the LBS. They're going to try to tap it first, if that doesn't work, going with a helicoil. It being springtime, though, they're slammed. I'm bike-less for a good solid week!
From the looks of the snowstorm hitting up there, you might not even miss the bike!
__________________
. “He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you.”- Fredrick Nietzsche

"We can judge the heart of a man by his treatment of animals." - Immanuel Kant
Tom Stormcrowe is offline   Reply With Quote
Old 05-01-08, 10:24 AM   #12
TrumpetMurph
Senior Member
Thread Starter
 
TrumpetMurph's Avatar
 
Join Date: Feb 2008
Location: Steamboat Springs, CO
Bikes: 2007 Bianchi Via Nirone
Posts: 98
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Tom Stormcrowe View Post
From the looks of the snowstorm hitting up there, you might not even miss the bike!
True story! We've got about four inches so far and it doesn't show any signs of stopping! Forecast has rain and snow for the next ten days straight. . .
TrumpetMurph is offline   Reply With Quote
Old 05-01-08, 10:33 AM   #13
badgermac
Senior Member
 
badgermac's Avatar
 
Join Date: Feb 2008
Location: Milwaukee, WI
Bikes: 2013 Specialized Tarmac Sport; 2010 Specialized Allez Steel Double; 2015 Specialized Roubaix Sport; 2013 Jamis Satellite Sport
Posts: 208
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Ugh! Man I'm so done with winter! Glad it's not hitting here (but feel bad for you, seriously!)
badgermac is offline   Reply With Quote
Old 05-01-08, 10:34 AM   #14
Tom Stormcrowe
Out fishing with Annie on his lap, a cigar in one hand and a ginger ale in the other, watching the sunset.
 
Tom Stormcrowe's Avatar
 
Join Date: Mar 2006
Location: South Florida
Bikes: Techna Wheelchair and a Sun EZ 3 Recumbent Trike
Posts: 16,120
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Apparently, you're due for a foot or so!

Quote:
Originally Posted by TrumpetMurph View Post
True story! We've got about four inches so far and it doesn't show any signs of stopping! Forecast has rain and snow for the next ten days straight. . .
__________________
. “He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you.”- Fredrick Nietzsche

"We can judge the heart of a man by his treatment of animals." - Immanuel Kant
Tom Stormcrowe is offline   Reply With Quote
Old 05-02-08, 07:11 PM   #15
TrumpetMurph
Senior Member
Thread Starter
 
TrumpetMurph's Avatar
 
Join Date: Feb 2008
Location: Steamboat Springs, CO
Bikes: 2007 Bianchi Via Nirone
Posts: 98
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Helicoiled up, ready to roll! Now if the weather would only cooperate!
TrumpetMurph is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 10:29 PM.