Cannot remove odd crank on old 18'' kid's bike. Spring loaded. I have searched..
#1
Cannot remove odd crank on old 18'' kid's bike. Spring loaded. I have searched..
Pictures worth more than my words: I need to replace the bearings, but this is in the way. Moving spring-loaded clips up and pressing them in enables that end of the crank to turn, but I cannot remove it.
Fixing bikes for free (by the grace of God) in this city then I have replaced many bearings, but never had to deal with these. Of what purpose do they even serve? Searching this site and Google has so far turned up nothing of help (for lack of a name of this engineering). Thanks for any help.
Fixing bikes for free (by the grace of God) in this city then I have replaced many bearings, but never had to deal with these. Of what purpose do they even serve? Searching this site and Google has so far turned up nothing of help (for lack of a name of this engineering). Thanks for any help.
Last edited by PeaceByJesus; 04-30-24 at 06:47 PM.
#2
SE Wis
Join Date: Apr 2005
Location: Milwaukee, WI
Posts: 10,567
Bikes: '68 Raleigh Sprite, '02 Raleigh C500, '84 Raleigh Gran Prix, '91 Trek 400, 2013 Novara Randonee, 1990 Trek 970
Liked 3,428 Times
in
2,076 Posts
My WAG is that is some sort of crank length adjustment. Or possibly some folding bike thing to swing the pedals in.
What I would probably do is remove the locknut and cone so I can get to the presumably caged bearings and cut the cage to remove the old bearings and use loose balls for new
What I would probably do is remove the locknut and cone so I can get to the presumably caged bearings and cut the cage to remove the old bearings and use loose balls for new
Last edited by dedhed; 04-30-24 at 06:55 PM.
#3
My WAG is that is some sort of crank length adjustment. Or possibly some folding bike thing to swing the pedals in.
What I would probably do is remove the locknut and cone so I can get to the presumably caged bearings and cut the cage to remove the old bearings and use loose balls for new
What I would probably do is remove the locknut and cone so I can get to the presumably caged bearings and cut the cage to remove the old bearings and use loose balls for new
This is not a folding bike, and the only function I can surmise for this is to enable one pedal to be switched to the other.
I have pressed and twisted and turned and yet nothing moved off.
The only image Google comes up with in searching for a image match is
Last edited by PeaceByJesus; 04-30-24 at 07:39 PM. Reason: typo
#4
Cantilever believer
Those are Huffy "EZ Build" bikes. They come with the pedals installed, but rotated 90° to fit in the box. They're designed so the buyer can pull the bike out of the box and rotate the pedal + lower crank assembly and have it click permanently in place with the spring-loaded pinned joint without the need for any tools. The downside is the only way to remove the crank fully from the frame involves a hacksaw and new crank, as the thread-on hardware will never clear the mechanism.
These bikes also typically have a stem that lowers into the steerer tube in a way where the bars are self-aligning - if the bike hasn't been tweaked in shipment, that is. Many of them also have a plastic bushing headset top race for "zero maintenance" - but also means that any play in the headset renders the entire frame unusable.
We built a bunch of these for a local nonprofit over the past few years. They're designed so someone with zero mechanical aptitude can have a bike ready for a kid to ride in minutes, but if any part doesn't work right you have a nonfunctional BSO that in many cases cannot be repaired and has to go back to the big box for exchange. But in that case the returned bikes do make good donor bikes for wheels and a couple of other parts.
These bikes also typically have a stem that lowers into the steerer tube in a way where the bars are self-aligning - if the bike hasn't been tweaked in shipment, that is. Many of them also have a plastic bushing headset top race for "zero maintenance" - but also means that any play in the headset renders the entire frame unusable.
We built a bunch of these for a local nonprofit over the past few years. They're designed so someone with zero mechanical aptitude can have a bike ready for a kid to ride in minutes, but if any part doesn't work right you have a nonfunctional BSO that in many cases cannot be repaired and has to go back to the big box for exchange. But in that case the returned bikes do make good donor bikes for wheels and a couple of other parts.
__________________
Richard C. Moeur, PE - Phoenix AZ, USA
https://www.richardcmoeur.com/bikestuf.html
Richard C. Moeur, PE - Phoenix AZ, USA
https://www.richardcmoeur.com/bikestuf.html
Likes For RCMoeur:
#5
Droid on a mission
Join Date: May 2018
Location: Palm Coast, FL
Posts: 1,014
Bikes: Diamondback Wildwood Classic
Liked 290 Times
in
200 Posts
Those are Huffy "EZ Build" bikes. They come with the pedals installed, but rotated 90° to fit in the box. They're designed so the buyer can pull the bike out of the box and rotate the pedal + lower crank assembly and have it click permanently in place with the spring-loaded pinned joint without the need for any tools. The downside is the only way to remove the crank fully from the frame involves a hacksaw and new crank, as the thread-on hardware will never clear the mechanism.
These bikes also typically have a stem that lowers into the steerer tube in a way where the bars are self-aligning - if the bike hasn't been tweaked in shipment, that is. Many of them also have a plastic bushing headset top race for "zero maintenance" - but also means that any play in the headset renders the entire frame unusable.
We built a bunch of these for a local nonprofit over the past few years. They're designed so someone with zero mechanical aptitude can have a bike ready for a kid to ride in minutes, but if any part doesn't work right you have a nonfunctional BSO that in many cases cannot be repaired and has to go back to the big box for exchange. But in that case the returned bikes do make good donor bikes for wheels and a couple of other parts.
These bikes also typically have a stem that lowers into the steerer tube in a way where the bars are self-aligning - if the bike hasn't been tweaked in shipment, that is. Many of them also have a plastic bushing headset top race for "zero maintenance" - but also means that any play in the headset renders the entire frame unusable.
We built a bunch of these for a local nonprofit over the past few years. They're designed so someone with zero mechanical aptitude can have a bike ready for a kid to ride in minutes, but if any part doesn't work right you have a nonfunctional BSO that in many cases cannot be repaired and has to go back to the big box for exchange. But in that case the returned bikes do make good donor bikes for wheels and a couple of other parts.
__________________
JoeTBM (The Bike Man) - I'm a black & white type of guy, the only gray in my life is the hair on my head
www.TheBikeMenOfFlaglerCounty.com
JoeTBM (The Bike Man) - I'm a black & white type of guy, the only gray in my life is the hair on my head
www.TheBikeMenOfFlaglerCounty.com
#6
SE Wis
Join Date: Apr 2005
Location: Milwaukee, WI
Posts: 10,567
Bikes: '68 Raleigh Sprite, '02 Raleigh C500, '84 Raleigh Gran Prix, '91 Trek 400, 2013 Novara Randonee, 1990 Trek 970
Liked 3,428 Times
in
2,076 Posts
Thanks, but the bearing cage on that side was already split and I removed it, and I twice placed all the bearings in grease without the cage (not easy) and tightened it up, yet which at best worked for a few day until the bottom bracket got a little loose, and then we were back to being unusable..
Likes For andrewclaus:
#8
Senior Member
I also repair kids' dumpster finds to give away free.
I choose bikes by triage. That means avoiding bikes that can cost me too much time.
I'm already donating my time and free parts, it's only fair to the kids that I can use the same time to pump out 2 bikes in stead of just one.
While we all want to save every bike we can, we need to decide how your time will be used best to create the most output.
I choose bikes by triage. That means avoiding bikes that can cost me too much time.
I'm already donating my time and free parts, it's only fair to the kids that I can use the same time to pump out 2 bikes in stead of just one.
While we all want to save every bike we can, we need to decide how your time will be used best to create the most output.
Likes For soyabean:
#9
Senior Member
For any parent that has built stuff into the wee hours of Christmas morning, a bike that snaps together in seconds without tools is pretty appealing.
Likes For ScottCommutes:
#10
Those are Huffy "EZ Build" bikes. They come with the pedals installed, but rotated 90° to fit in the box. They're designed so the buyer can pull the bike out of the box and rotate the pedal + lower crank assembly and have it click permanently in place with the spring-loaded pinned joint without the need for any tools. The downside is the only way to remove the crank fully from the frame involves a hacksaw and new crank, as the thread-on hardware will never clear the mechanism.
These bikes also typically have a stem that lowers into the steerer tube in a way where the bars are self-aligning - if the bike hasn't been tweaked in shipment, that is. Many of them also have a plastic bushing headset top race for "zero maintenance" - but also means that any play in the headset renders the entire frame unusable.
We built a bunch of these for a local nonprofit over the past few years. They're designed so someone with zero mechanical aptitude can have a bike ready for a kid to ride in minutes, but if any part doesn't work right you have a nonfunctional BSO that in many cases cannot be repaired and has to go back to the big box for exchange. But in that case the returned bikes do make good donor bikes for wheels and a couple of other parts.
These bikes also typically have a stem that lowers into the steerer tube in a way where the bars are self-aligning - if the bike hasn't been tweaked in shipment, that is. Many of them also have a plastic bushing headset top race for "zero maintenance" - but also means that any play in the headset renders the entire frame unusable.
We built a bunch of these for a local nonprofit over the past few years. They're designed so someone with zero mechanical aptitude can have a bike ready for a kid to ride in minutes, but if any part doesn't work right you have a nonfunctional BSO that in many cases cannot be repaired and has to go back to the big box for exchange. But in that case the returned bikes do make good donor bikes for wheels and a couple of other parts.
Or a cutting wheel (absent acetylene). I have even resorted to trying to twist this contraption off with a pipe wrench while simultaneously holding the sliding clips up and in. Has not worked yet. The kid really likes this bike, and the bottom bracket is a smaller size than the standard ones on the typical 20;; bike, but I will look around.
And as said placing the bearings in the inside cup with grease is only a temporary fix.
But thanks so much for solving this mystery as to what these are and their function.
Now that I know what these are called then I can do more research. Pray and press!
Last edited by PeaceByJesus; 05-01-24 at 09:45 AM.
#11
I also repair kids' dumpster finds to give away free.
I choose bikes by triage. That means avoiding bikes that can cost me too much time.
I'm already donating my time and free parts, it's only fair to the kids that I can use the same time to pump out 2 bikes in stead of just one.
While we all want to save every bike we can, we need to decide how your time will be used best to create the most output.
I choose bikes by triage. That means avoiding bikes that can cost me too much time.
I'm already donating my time and free parts, it's only fair to the kids that I can use the same time to pump out 2 bikes in stead of just one.
While we all want to save every bike we can, we need to decide how your time will be used best to create the most output.
#12
They were tight, but besides bearings being easily moved - despite the grease - as you put the cone back in, then on old bikes the cup on the bike can become deformed over time (which over tightening can do) , and thus even caged bearings can become loose prematurely, esp, if the user does not return as told to after some break in.
#13
I'm good to go!
Join Date: Jul 2017
Location: Mississippi
Posts: 15,374
Bikes: Tarmac Disc Comp Di2 - 2020
Liked 4,996 Times
in
3,440 Posts
I've taken much better bikes to the scrap yard to let them be recycled into something else. I very much believe that most old bikes don't need to be saved. They don't need to go to a landfill though. They need to go to the scrapyard.
#14
Bad example
Join Date: Nov 2015
Location: Seattle and Reims
Posts: 3,293
Bikes: Peugeot: AO-8 1973, PA-10 1971, PR-10 1973, Sante 1988; Masi Gran Criterium 1975, Stevenson Tourer 1980, Stevenson Criterium 1981, Schwinn Paramount 1972, Rodriguez 2006, Gitane Federal ~1975, Holdsworth Pro, Follis 172 ~1973, Bianchi '62
Liked 430 Times
in
203 Posts
I could be wrong, but I believe that an Ashtabula crank requires caged bearings. I learned that only after I tried and failed to use loose bearings on an Ashtabula assembly.
__________________
Keeping Seattle’s bike shops in business since 1978
Keeping Seattle’s bike shops in business since 1978
#15
Senior member
Yeah, it is possible but not worth the effort.
#16
Bad example
Join Date: Nov 2015
Location: Seattle and Reims
Posts: 3,293
Bikes: Peugeot: AO-8 1973, PA-10 1971, PR-10 1973, Sante 1988; Masi Gran Criterium 1975, Stevenson Tourer 1980, Stevenson Criterium 1981, Schwinn Paramount 1972, Rodriguez 2006, Gitane Federal ~1975, Holdsworth Pro, Follis 172 ~1973, Bianchi '62
Liked 430 Times
in
203 Posts
#17
Senior member
Not quite, but it was an extremely tacky grease.
#18
SE Wis
Join Date: Apr 2005
Location: Milwaukee, WI
Posts: 10,567
Bikes: '68 Raleigh Sprite, '02 Raleigh C500, '84 Raleigh Gran Prix, '91 Trek 400, 2013 Novara Randonee, 1990 Trek 970
Liked 3,428 Times
in
2,076 Posts
Likes For dedhed:
#19
How long do you expect that bike to fit and be appropriate your child's use? Temporary might be all that's needed. Even if you have to change the ball bearings again.
I've taken much better bikes to the scrap yard to let them be recycled into something else. I very much believe that most old bikes don't need to be saved. They don't need to go to a landfill though. They need to go to the scrapyard.
I've taken much better bikes to the scrap yard to let them be recycled into something else. I very much believe that most old bikes don't need to be saved. They don't need to go to a landfill though. They need to go to the scrapyard.
#20
Senior Member
The issue I have with gifting a kid a brand new bike, or something perhaps of a like-new Specialized Hotrock, is that their deadbeat broke parents often sell it for cash. This incident was discussed a few times among Angel Trees.
Premium retail-ready bikes I do resell thru my usual channels, the revenues from just one sale can fund a whole lot of parts required to fix many kids' dumpster finds.
That makes more bikes repaired with necessary parts.
Premium retail-ready bikes I do resell thru my usual channels, the revenues from just one sale can fund a whole lot of parts required to fix many kids' dumpster finds.
That makes more bikes repaired with necessary parts.
#21
Senior Member
Walk that bike to a gravel pit and....
#22
The issue I have with gifting a kid a brand new bike, or something perhaps of a like-new Specialized Hotrock, is that their deadbeat broke parents often sell it for cash. This incident was discussed a few times among Angel Trees.
Premium retail-ready bikes I do resell thru my usual channels, the revenues from just one sale can fund a whole lot of parts required to fix many kids' dumpster finds.
That makes more bikes repaired with necessary parts.
Premium retail-ready bikes I do resell thru my usual channels, the revenues from just one sale can fund a whole lot of parts required to fix many kids' dumpster finds.
That makes more bikes repaired with necessary parts.
Anyway. I cut off the spring-loaded pinned joint which did not take long with a small cutting wheel,
I bolted together as an experiment until I replace it with the same size bottom bracket crank I found. Kid is happy to have his bike back, thank God. with the admonition to check for looseness. Most owners neglect this - which extends to all parts - and which results in most preventable repairs (apart from flat tires, which are the most frequent repairs here).
.
Last edited by PeaceByJesus; 05-03-24 at 06:14 AM.
#23
Senior Member
This is an example at how my time would be better served if I were to raise money by selling something I don't need anymore, and then use the money to buy a used BSO for about $10-20 to gift.
You'd be surprised how many listings sell when you make about 50 ads of $10 items. These are things I would normally toss, but the money is always coming in and this helps for parts I need to fix gift bikes.
You'd be surprised how many listings sell when you make about 50 ads of $10 items. These are things I would normally toss, but the money is always coming in and this helps for parts I need to fix gift bikes.