Bike Forums

Bike Forums (https://www.bikeforums.net/forum.php)
-   Classic & Vintage (https://www.bikeforums.net/classic-vintage/)
-   -   Klunker conversion! (https://www.bikeforums.net/classic-vintage/682697-klunker-conversion.html)

mattface 09-24-10 05:41 AM

Klunker conversion!
 
http://farm5.static.flickr.com/4131/...27475a1d8b.jpg
Klunker! by mattface, on Flickr


I went down to the bike coop to replace a broken spoke, and was truing the wheel when a guy walked in and donated this old Schwin cruiser frame that had been converted to a 10 speed. Overall it was a very nifty bike with a rear drum brake front and rear derailers, and a granny ring cobbled onto the ashtabula crank, but the cob job they had done to accommodate a front brake was so bad as to ruin an otherwise very cool conversion. THe brake was bolted to a mild steel strap bolted to the bottom of the fork and was wobbly as hell. I wouldn't ride it like that let alone sell it, but it was so close I couldn't leave it alone, it was 80% of the way to being a 70s style California klunker mountain bike. I miraculously found a fork that would fit, so I just had to finish it, and it turned out to be a great home for those ridiculous yellow anodized bars that have been kicking around the coop. I don't know if anyone will buy this thing, but I think it's very cool.


http://farm5.static.flickr.com/4152/...a6dc3b9179.jpg
Klunker! by mattface, on Flickr

7speed 09-24-10 07:28 AM

This is something I like!

Now I have do do something similar. I've had it in the back of my mind for a while anyway......

mattface 09-24-10 07:54 AM

It kinda weighs a ton (compared to an 80s MTB) but it rides real nice! I rode it to work today. I like to ride my creations around a bit to make sure I have all the bugs worked out, and to have a chance to enjoy them before they are sold.

David Newton 09-24-10 08:12 AM

Hey Mattface, that is cool, good job.
My daughter & son-in-law live just down the road in Berlin. That bike would be great fun bombing down their mountain, but make sure the brakes are flawless!

guzziee 09-24-10 08:24 AM

Looks like an 80's schwinn cruiser 5 with a rear Atom drum brake, I've seen the rear drum models bring a decent Pennie on fleabay..... :thumb:

mattface 09-24-10 08:26 AM

Thanks David! The front brake was useless before, but it's good now, a new old stock Diacompe Side pull straight from the box. The rear drum is a monster of a thing with big heavy spokes. It's mainly the wheels and the frame that make it such a heavy bike, but it's very solid and has plenty of brake now.

mattface 09-24-10 08:37 AM


Originally Posted by guzziee (Post 11517158)
Looks like an 80's schwinn cruiser 5 with a rear Atom drum brake, I've seen the rear drum models bring a decent Pennie on fleabay..... :thumb:

The rear wheel might have come from an 80s schwinn, but I'm pretty sure this is an older Schwinn frame that's been converted to take that drum brake. THere are no provisions on the frame for cable routing, cables are zip tied and derailer and shifters have shims to mount them on the thin tubing. The front fork was the old flimsy style with no provision for a front brake.

schwinnderella 09-24-10 09:19 PM

Neat bike,wish I was closer.Easily worth $100.

curbtender 09-24-10 09:41 PM


Originally Posted by mattface (Post 11517214)
The rear wheel might have come from an 80s schwinn, but I'm pretty sure this is an older Schwinn frame that's been converted to take that drum brake. THere are no provisions on the frame for cable routing, cables are zip tied and derailer and shifters have shims to mount them on the thin tubing. The front fork was the old flimsy style with no provision for a front brake.

The cables for the positron shifter were all held on with clamps, no braze-ons. Check your serial number here... http://www.angelfire.com/rant/allday...innCodes1.html

Grand Bois 09-24-10 11:35 PM

I've wanted to build a Klunker for years. I'm just waiting for the right frame to come along. I live right across the bridge from where it all started in Marin.

curbtender 09-25-10 11:37 AM

I might have one for you if interested.

fuzz2050 09-25-10 12:52 PM

1 Attachment(s)
What's this I'm reading about brakes on a Klunker? That's what your boots are for

http://bikeforums.net/attachment.php...hmentid=171255

schwinnderella 09-25-10 04:08 PM

Curbtender,what do you have?

ozneddy 09-25-10 05:03 PM

I,m building up a similar bike , will post pix when I get it finished !

Grand Bois 09-25-10 08:05 PM


Originally Posted by curbtender (Post 11522325)
I might have one for you if interested.

I might be. Bring it over. If it's a Schwinn Excelsior I want it for sure!

curbtender 09-26-10 09:27 AM

58' Schwinn American. A recent garbage save.

Grand Bois 09-26-10 02:02 PM

Here it is. Curbtender let me have it. It's actually rideable, with good Carlisle tires. I wanted to build a Klunker, but it has a certain charm just the way it is.

The rack has to go, of course.

http://inlinethumb52.webshots.com/67...600x600Q85.jpg

sailorbenjamin 09-26-10 08:40 PM

Beautiful. I'd recommend a smaller chainring or a bigger cog than Schwinn put on it. I wonder why they geared them so high.

Grand Bois 09-26-10 08:54 PM

I found it in an online catalog. It's an F24C. It weighed 45 1/2 pounds when it was new and complete. The chainguard has surface rust, but it's straight. Don't these have an odd size stem?

http://www.schwinnbike.com/aut/eng/f...7&d=1230399750

mattface 09-28-10 07:40 AM

This one had a regular 22.2 stem, but it has an odd size stem NOW. I guess the fork I found must have been a 26' BMX fork. as luck would have it I also had a BMX stem that matched the crazy bars.

I rode it to work the day after I built it and my friend Zoe fell in love with it at first sight, so it's hers now.

sailorbenjamin 09-28-10 11:15 AM

You know I've got a mountain bike fork that would fit one of these things but it has canti bosses on it. I'm never gonna gt around to it. Anyone want it?

Grand Bois 09-28-10 12:31 PM

It would have to be from a very large mountain bike. The head tubes on these are long.

I've decided to donate mine to the custodians at the local school after I rehab it. The campus is large, so they use a bicycle to get around. The trouble is that there are two custodians and only one bike. I plan to put on a large front basket for cleaning supplies.

The bike is ridiculously heavy. I have a sore back today from lifting it onto the stand.

guzziee 10-04-10 12:52 PM

Put this one together over the weekend, with a 1940's skiptooth frame and a bunch of "BMX" parts I had laying around. Rides very nice........ ;). I want your gold bars!!

http://i26.photobucket.com/albums/c1...e/Dsc_1720.jpg
http://i26.photobucket.com/albums/c1...e/Dsc_1721.jpg
http://i26.photobucket.com/albums/c1...e/Dsc_1722.jpg
http://i26.photobucket.com/albums/c1...e/Dsc_1724.jpg
http://i26.photobucket.com/albums/c1...e/Dsc_1725.jpg
http://i26.photobucket.com/albums/c1...e/Dsc_1726.jpg
http://i26.photobucket.com/albums/c1...e/Dsc_1727.jpg

that_guy_zach 10-04-10 12:59 PM

Were those the parts from the Schwinn BMX "Cruiser"?

mattface 10-04-10 01:00 PM


Originally Posted by guzziee (Post 11568106)
Put this one together over the weekend, with a 1940's skiptooth frame and a bunch of "BMX" parts I had laying around. Rides very nice........ ;). I want your gold bars!!

Awesome! We've got a second pair of identical gold bars at the coop I'd be happy to send them to you for a reasonable donation to the coop.


All times are GMT -6. The time now is 11:18 AM.


Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.