Fork Repair
11-24-22, 10:17 AM
#1
Senior Member
Thread Starter
Join Date: Mar 2013
Location: Maryland
Posts: 3,799
Bikes: Lots of English 3-speeds, a couple of old road bikes, 3 mountain bikes, 1 hybrid, and a couple of mash-ups
Mentioned: 53 Post(s)
Tagged: 0 Thread(s)
Quoted: 887 Post(s)
Liked 335 Times
in
225 Posts
Fork Repair
Rivendell had this video in their latest promo email. I thought it was interesting.
11-24-22, 11:30 AM
#2
señor miembro
Join Date: Dec 2018
Location: Pac NW
Posts: 6,598
Bikes: '70s - '80s Campagnolo
Mentioned: 92 Post(s)
Tagged: 0 Thread(s)
Quoted: 3860 Post(s)
Liked 6,450 Times
in
3,190 Posts
Cheater bar and brute force. 
Likes For SurferRosa:
11-24-22, 01:16 PM
#3
Senior Member
Join Date: Mar 2014
Location: City of Angels
Posts: 4,870
Bikes: A few too many
Mentioned: 42 Post(s)
Tagged: 1 Thread(s)
Quoted: 1363 Post(s)
Liked 2,177 Times
in
1,182 Posts
Great video, it's amazing what it really takes to bend/break a weld or a tube. Seeing the force that it takes to straighten/bend a frame tube often makes me laugh, when folks post a picture of a small dent asking if the frame is toast or safe to ride.
Look at this poor frame, not saying that I would ride it but...https://www.bikeforums.net/classic-v...-gone-bad.html
Best, Ben
Look at this poor frame, not saying that I would ride it but...https://www.bikeforums.net/classic-v...-gone-bad.html
Best, Ben
__________________
"EVERY PERSON IS GUILTY OF ALL THE GOOD THEY DID NOT DO"
Voltaire
Voice recognition may sometimes create odd spelling and grammatical errors
"EVERY PERSON IS GUILTY OF ALL THE GOOD THEY DID NOT DO"
Voltaire
Voice recognition may sometimes create odd spelling and grammatical errors
Last edited by xiaoman1; 11-24-22 at 01:19 PM.
Likes For xiaoman1:
11-24-22, 01:24 PM
#4
Senior Member
Join Date: Oct 2014
Location: Portland, OR
Posts: 12,889
Bikes: (2) ti TiCycles, 2007 w/ triple and 2011 fixed, 1979 Peter Mooney, ~1983 Trek 420 now fixed and ~1973 Raleigh Carlton Competition gravel grinder
Mentioned: 129 Post(s)
Tagged: 0 Thread(s)
Quoted: 4788 Post(s)
Liked 3,914 Times
in
2,545 Posts
Looks to me like you've got about two hours to get that fork repaired and ready to eat with. (And that fork looks sized about right for the day.)
11-24-22, 01:39 PM
#5
Senior Member
Join Date: Sep 2017
Location: Eastern Shore, MD
Posts: 2,104
Bikes: Road ready: 1993 Koga Miyata City Liner Touring Hybrid, 1989 Centurion Sport DLX, "I Blame GP" Bridgestone CB-1. Projects: Yea, I got a problem....
Mentioned: 24 Post(s)
Tagged: 0 Thread(s)
Quoted: 753 Post(s)
Liked 735 Times
in
421 Posts
What I dont get is, if he had the tooling, why didn't he make a jig that would connect the bottom of the crown and the drop outs to a lever and be able to apply controlled force the first time.
Likes For bark_eater:
Likes For P!N20:
11-24-22, 06:35 PM
#7
Senior Member
Not to get too graphic, but if I did what he did during the first half, I'd be nursing a hemorrhoid for a month.
11-24-22, 07:59 PM
#8
Senior Member
Join Date: Mar 2014
Location: City of Angels
Posts: 4,870
Bikes: A few too many
Mentioned: 42 Post(s)
Tagged: 1 Thread(s)
Quoted: 1363 Post(s)
Liked 2,177 Times
in
1,182 Posts
[QUOTE=gearbasher;22720431]Not to get too graphic, but if I did what he did during the first half, I'd be nursing a hemorrhoid for a month.[/QUOTE
gearbasher,
That's a bit more information than is necessary.........
Best, Ben
gearbasher,
That's a bit more information than is necessary.........
Best, Ben
__________________
"EVERY PERSON IS GUILTY OF ALL THE GOOD THEY DID NOT DO"
Voltaire
Voice recognition may sometimes create odd spelling and grammatical errors
"EVERY PERSON IS GUILTY OF ALL THE GOOD THEY DID NOT DO"
Voltaire
Voice recognition may sometimes create odd spelling and grammatical errors
11-24-22, 11:15 PM
#9
Senior Member
Join Date: Jun 2006
Posts: 20,305
Mentioned: 130 Post(s)
Tagged: 0 Thread(s)
Quoted: 3464 Post(s)
Liked 2,826 Times
in
1,994 Posts
That should gobsmack Grant
11-25-22, 07:40 AM
#10
Senior Member
Join Date: May 2008
Location: Fredericksburg, Va
Posts: 9,579
Bikes: '65 Frejus TDF, '73 Bottecchia Giro d'Italia, '83 Colnago Superissimo, '84 Trek 610, '84 Trek 760, '88 Pinarello Veneto, '88 De Rosa Pro, '89 Pinarello Montello, '94 Burley Duet, 97 Specialized RockHopper, 2010 Langster, Tern Link D8
Mentioned: 73 Post(s)
Tagged: 0 Thread(s)
Quoted: 1607 Post(s)
Liked 2,213 Times
in
1,103 Posts
This was really painful to watch! Although the end results looks acceptable, I am not convinced the fork crown center line is aligned with the steering tube center line. Then there is the issue of how round the steering tube is now after squeezing the heck out of it on the vice even with the tool (AL?).
Please don't try this at home!
Please don't try this at home!
__________________
Bikes don't stand alone. They are two tired.
Bikes don't stand alone. They are two tired.
11-25-22, 12:27 PM
#12
Senior Member
Join Date: May 2010
Location: Bastrop Texas
Posts: 4,464
Bikes: Univega, Peu P6, Peu PR-10, Ted Williams, Peu UO-8, Peu UO-18 Mixte, Peu Dolomites
Mentioned: 13 Post(s)
Tagged: 0 Thread(s)
Quoted: 954 Post(s)
Liked 1,619 Times
in
1,039 Posts
Wonder how many tools in that shop came from Harbor Freight suppliers?
But then again that Park alignment tool is the best. I am sure the most important thing about this repair is that it is successful and he is satisfied with his work. BRAVO...
But then again that Park alignment tool is the best. I am sure the most important thing about this repair is that it is successful and he is satisfied with his work. BRAVO...
__________________
No matter where you're at... There you are... Δf:=f(1/2)-f(-1/2)
No matter where you're at... There you are... Δf:=f(1/2)-f(-1/2)
11-25-22, 05:44 PM
#13
www.theheadbadge.com
Join Date: Sep 2005
Location: Southern Florida
Posts: 28,508
Bikes: https://www.theheadbadge.com
Mentioned: 124 Post(s)
Tagged: 0 Thread(s)
Quoted: 2420 Post(s)
Liked 4,381 Times
in
2,090 Posts
Cold setting is often not pretty, but sometimes, a bit of ugliness is what it takes to undo a wreck. All things considered, it doesn't matter how you get there if you get the right result and keep the paint intact.
Shame he didn't have a leverage arm like the Park FFS to work with, but the "total-fork bash" approach just might have helped to overcome any potential twist of the crown itself.
-Kurt
Shame he didn't have a leverage arm like the Park FFS to work with, but the "total-fork bash" approach just might have helped to overcome any potential twist of the crown itself.
-Kurt
__________________
11-25-22, 05:50 PM
#14
Senior Member
Join Date: Mar 2015
Location: New Zealand
Posts: 1,052
Bikes: Gunnar, Shogun, Concorde, F Moser, Pete Tansley, Rocky Mtn, Diamant, Krapf, Marin, Avanti, Winora, Emmelle, Ken Evans
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 273 Post(s)
Liked 416 Times
in
217 Posts
That guy is the man. He has some other cool videos too. I like the vibe of his little shop. Wish there were subtitles.
11-26-22, 01:55 PM
#15
Senior Member
Thread Starter
Join Date: Mar 2013
Location: Maryland
Posts: 3,799
Bikes: Lots of English 3-speeds, a couple of old road bikes, 3 mountain bikes, 1 hybrid, and a couple of mash-ups
Mentioned: 53 Post(s)
Tagged: 0 Thread(s)
Quoted: 887 Post(s)
Liked 335 Times
in
225 Posts
11-26-22, 01:58 PM
#16
www.theheadbadge.com
Join Date: Sep 2005
Location: Southern Florida
Posts: 28,508
Bikes: https://www.theheadbadge.com
Mentioned: 124 Post(s)
Tagged: 0 Thread(s)
Quoted: 2420 Post(s)
Liked 4,381 Times
in
2,090 Posts
-Kurt
__________________
Likes For cudak888:
