Klunker build. (Testride! pg2)

Rat Rod Bikes Bicycle Forum

Help Support Rat Rod Bikes Bicycle Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Finished the stem and very happy with the clamp-brazing!
I disassembled the bike and removed the fork because factory stock, bikes have a few licks of grease compared what I like to use.

20241102_162057.jpg

20241102_162103.jpg

Brand new in sale..... could not find a second hand one or utilize the milling machine so a brand new one.

1000036197.jpg

1000036198.jpg

Oh yeah!

1000036199.jpg

1000036200.jpg

Leftover scrap.


1000036201.jpg

This I need!

1000036202.jpg

Still rough, I will clean that up later.

1000036207.jpg

Marking the radius for notching.

1000036208.jpg

35mm drill.

1000036209.jpg

1000036251.jpg

Checking stem length or reach. I don't like very long stems.

1000036267.jpg

Test.

1000036284.jpg

1000036292.jpg

Oh yeah, I'm getting the hang of soldering / brazing!

1000036353.jpg

1000036354.jpg

Cleaned, sanded, rounded and painted!

1000036357.jpg

1000036362.jpg

1000036363.jpg

That a little dry for my likings.

1000036364.jpg

Wheres the sticky stinky stuff gone?
I'm going to put a lot of grease on there!

1000036370.jpg

First testfit after fork re-assembly.

1000036371.jpg

You can still recognize the fork crown right? 😉

1000036368.jpg

Stem looks great! I taped the frame because I'm removing some brackets.

1000036367.jpg

Next job: Engineer + fabricate something that makes this pin more stuck in the hole. Now I can feel the tick-tock "play" when accelerating and braking with the coasterbrake.
 
Like I mentioned earlier, when I pedal or brake hard, I don't like the 'play' in the crankpin and the disc/sprockets hole.
I already changed the pedal threads from 1/2" to 9/16" a while ago.

I came up with an steel bush that I filed to fit the crankpin. It has a collar, so when the disc/sprocket is attached, it can never fall off.

1000036386.jpg

1000036387.jpg
1000036392.jpg

Result!

1000036393.jpg

1000036394.jpg

1000036395.jpg

Now it has a larger surface area to 'press' in the aluminum disc. Much better.


And the hubs are lubricated! No cleaning necessary, since this bike has seen only 2 kilometres or so. I only had to remove one long hair on the brake side bearing. Nasty!

1000036396.jpg

1000036397.jpg

Histop coasterbrake hub. Not my favorite but it does the job, especially here in our flat country.

1000036398.jpg

For final assembly, I'm gonna change the washers for a larger size.


Next is thinking about paint. I'll leave the orange on, but I want to add or change the black front of the frame and headtube.
Suggestions are welcome!

Thanks for reading!
 
That stem came out great, very creative!
Thanks! I'm very happy too. People are asking me if I did some tensile testing... I said I'm trying it out on the track! There a race coming up in a few weeks. Maybe I'll take an extra stem just in case...
Ed Helms Film GIF
 
Hi guys, what do you think of the cockpit so far? I'm pretty happy with the looks.
Position and if I'll use the setback seatpost is something I will have to check before riding trails and trips.

1000036486.jpg
1000036487.jpg

1000036488.jpg

1000036489.jpg

1000036491.jpg

1000036492.jpg

1000036493.jpg

Pretty tough! The bush can't fall out because it has a collar between the 'Asco power disc' and the crank pin.
 
Looks great! That stem came out real good. It will be interesting to see how it rides!
Thank you, I agree. Depending on the ride, I will donate this or my other Klunker to the mountainbike museum the 15th of December.

Dude that stem is awesome! Great bike
Thank you :thumbsup:

Looks awesome and powerful. You are helping me with decisions about my set of moto bars. I'm inspired
Thank you too Matti, always happy to do tryouts and inspire.

I assembled a few more things and adjusted the stem.
The sprockets will be: 39 teeth up front and 19 teeth on the rear. 670mm diameter wheels.

My old Klunker has the same sprockets and has 650mm diameter wheels.

1000036532.jpg

1000036534.jpg

1000036533.jpg

Large washers and a thick 19 teeth sprocket.

1000036535.jpg

Brooks C17 carved seat assembled! Almost there!

Left to do:
Details like paint (headtube). Maybe a few stickers. I'm thinking about keep it clean.

Chain.
Some neat orange and/or vintage grips.
Adjusting and cleaning.
 
Testride, today, not an actual trail, but on tarmac. Very happy with the result so far! Stem survived my full weight and wheelies.

1000036587.jpg

1000036575.jpg

1000036573.jpg

1000036567.jpg

1000036566.jpg
 
I am not sure if I will leave the tires on. Coming weekend I will pick up a trail and 'feel' the bike and these stock tires.
And what does not help in my choice: I saw a brand called 'Panaracer' which has pretty beautiful retro / vintage mountainbike tires.

Panaracer colours picture link

Blue with the orange still has not left my head.
The downside: The Panaracer Fire XC only has 2.1" width. I like to fill the frame with rubber :21:
 
Last edited:
Just a few tire options (one can dream right?)

Panaracer Fire XC:
Saddly only in 2.1" width.
1000036611.jpg

1000036612.jpg

1000036613.jpg



Schwalbe Nobby Nic:
26x2.4 bronze wall.
1000036610.jpg



Panaracer Swoop:
26x2.4
1000036609.jpg




Reading in reviews, they are all pretty good mountainbike tires.
It is probably better than my previous Klunker: 24" Felt Berm Masters (very slippery on wet/moist sandy surfaces).

I really like a bigger tire, comfort and look-wise.
I like the idea of skinwalls too on my orange bike.

Does anyone have suggestions? I'm open to hear it!
 

Latest posts

Back
Top