Mint Chocolate Chip-A bike built for the Crested Butte Chainless World Champs (Finished)

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.
Its definitely an interesting event, and I welcome any RRB'er to come out and join in on the fun! As you can see from the video its not a serious event and many come out on some crazy rides. Crested Butte is a really friendly town with many vintage cruisers rolling around.

Back to the build. I got the hub overhauled and reinstalled with the pegs. Cones and bearings look to be in great shape.

e16b220e0145be62c6852386c9d3a5f3.jpg


a3b74db0a4f0279b780035807a507589.jpg


Also have the brake all hooked up.

6dfd14b1ca0e3fee573a0d2e31e1aa6c.jpg


I am getting close to having a rideable, or should I say, rollable bike! Then its fairing time :)
 
Went to overhaul the front hub and much to my surprise, I had forgotten why I had saved this hub in the first place! It is running sealed cartridge bearings :) pretty cool for a old 90s hub.

c3bd1d18ba9c8fb00202c7fb60280ece.jpg


Popped the seals and unfortunately they are caged, I am going to order some higher quality bearings for it, something with more balls, loose style like the hub mods mentioned earlier.

17c57a183bf399e22c96399324796510.jpg


Stole the tires off the road bike and its a roller! They are Specialized armadillo 700x25c, have puncture resistance, and a little bit of tread for traction off pavement. I have personally run them in near mtb conditions and on fire roads with my road bike and must say they hook up well offroad, as well as a near slick road tire can anyways! No issues with flats yet either. So yeah, its a roller!! :)

fca4c8e4739e81bebee67b570ac0265d.jpg


73badf4efd305cedfbe7a3b654d4e9c8.jpg


c3de574c244f064695ec73d740b07370.jpg


e90719fcb29ba1c2f281822c898dced2.jpg


c84565a852ae4fa5a8f09d6637939fe6.jpg


7963ed900022fcda2bd384a0cc3c2b5e.jpg


Now to do some testing and make a fairing!
 
Well i scooted to the top of the street and rolled back. Its barely two blocks and maybe a 1% grade? Hit just under 15 rolling along, not the smoothest run either! This thing wants to roll!

Starting on the fun part, fairing construction! Found this corrugated plastic bike box at work, perfect!

6db9e186b1aed7cf7b3894bc944b629f.jpg


I do not wrench at Colorado Cyclist, just where the box came from, may keep it for my rear wheel disc.

Figured I would start at the wheel since I know I want to follow it similar to a Moto GP bike.

2703aec502f0d0932a178b95b38d7e50.jpg


Sipping on some local CO brew and enjoying the beautiful sunset while visualizing while constructing...

80ca234f387db864964b7dd14558407d.jpg


ac7b901626e678e27d15a5f5237fd626.jpg


2056a9d22055fcf71feee31f71b9756c.jpg


Lets see how far I get tonight.
 
I'll say 4
But maybe, you'll get some fairing design.
Thats pretty funny. I just opened my 4th, and am done designing and constructing for the night :) this corrugated plastic cuts well with a razor blade, but 3 brew in and going on my fourth I am calling it before major bloodloss...

Got some of my boat hull style construction going, getting better as I go.

a8ad8cffa1e50a5686b1ee02f3e77a65.jpg


3316eebb9373efddde8c8716603f621a.jpg


Got a long ways to go before I skin it...
 
Thats pretty funny. I just opened my 4th, and am done designing and constructing for the night :) this corrugated plastic cuts well with a razor blade, but 3 brew in and going on my fourth I am calling it before major bloodloss...

Got some of my boat hull style construction going, getting better as I go.

a8ad8cffa1e50a5686b1ee02f3e77a65.jpg


3316eebb9373efddde8c8716603f621a.jpg


Got a long ways to go before I skin it...
:113:
 
Thats pretty funny. I just opened my 4th, and am done designing and constructing for the night :) this corrugated plastic cuts well with a razor blade, but 3 brew in and going on my fourth I am calling it before major bloodloss...

Got some of my boat hull style construction going, getting better as I go.

a8ad8cffa1e50a5686b1ee02f3e77a65.jpg


3316eebb9373efddde8c8716603f621a.jpg


Got a long ways to go before I skin it...
What??
This is going to be good!
 
More boat hull construction happening this morning!

d4163864d8980171b429536fd6773ab3.jpg


3fc2a211af5fc5324b84f59cd6e221d8.jpg


6c78fd86b0803f9db6aaabc31cfdd4cc.jpg


Electrical tape mock up going well, ready to start glueing the assembly together before I get much farther. Going to add a couple more vertical supports in the front but its shaping up. Glad my roommate and GF arent complaining about me using pot lids for different radius.
 
The vid looked like a fun day. love coastering downhills here.
I find my bikes with 3" tires roll faster and further...
love your bike so far.
 
I imagine the wider tire helps distribute the load over a greater area? I have been thinking about a lot of physics with this one. I do have clearance for a larger tire, but nowhere near the 3" range. I ran a 26x1.5 Geax Roadster on my Higgins last year aired up to about 80psi. It worked really well, felt a little slow in the dirt sections and overall throughout the course. I do plan on doing a lot of testing with this ride before the race, probably experiment with different tires, weight, body positions, etc. Putting a lot more thought and effort into being competitive this year!

Sent from my SM-G550T1 using Tapatalk
 
Took a break from construction to run to the hardware store. Picked up some CA glue, which is in essence super glue... research told me they work fairly well for this plastic. Also found these button post screws things in alloy for my wheel covers.

a604825943f5e5fa0d9042d001fbeb34.jpg


Using the easiest method I know for tracing a circle. Screw, string, and pencil, or in this case felt tipped pen...

20b873ed76157e6f7e18909c58f78409.jpg


Traced the circle so I could retain the CO Cyclist logo on the wheel disc, might as well look sponsored!

08ebeb0fc3cd53e0ca68ebe7cbc3c678.jpg


One disc cut out.

dcadb04416f52f23047c82d749ea5d05.jpg


Same string and penc method for center cut.

eb7b883e449e92526d50578ec035f557.jpg


Both discs cut! Used the first as a pattern for second as opposed to string method.

40461eae5a25fceb45a404d088a89cc5.jpg


Installed!

6b07d8c327fc7f0456c27b0403136f2a.jpg


Need 8 more button post screws so it doesnt bend outwards. May run tape over rim/disc seam.

a302a4e4f9a5e0bb04f8ed5ddaacc324.jpg


Onto gluing the current boat hull pieces...
 
Well i scooted to the top of the street and rolled back. Its barely two blocks and maybe a 1% grade? Hit just under 15 rolling along, not the smoothest run either! This thing wants to roll!

Starting on the fun part, fairing construction! Found this corrugated plastic bike box at work, perfect!

6db9e186b1aed7cf7b3894bc944b629f.jpg


I do not wrench at Colorado Cyclist, just where the box came from, may keep it for my rear wheel disc.

Figured I would start at the wheel since I know I want to follow it similar to a Moto GP bike.

2703aec502f0d0932a178b95b38d7e50.jpg


Sipping on some local CO brew and enjoying the beautiful sunset while visualizing while constructing...

80ca234f387db864964b7dd14558407d.jpg


ac7b901626e678e27d15a5f5237fd626.jpg


2056a9d22055fcf71feee31f71b9756c.jpg


Lets see how far I get tonight.
Ipswich ale! I've had some of that a few times!
 
Looks like a very good time after looking into this! Not too serious. I would think long low and heavy with the least rolling resistance..but I am eager to learn and be proved wrong :D

I would like to show up on a old shaft drive bike just get folks wondering.
 
I would like to show up on a old shaft drive bike just get folks wondering.

A friend did it on a pennyfarthing a few yers back... no chain! Of course he wasn't the most competitive, but this is a fun event as opposed to serious competition, I am just going for glory ;)
 
Last edited:
A friend did it on a pennyfarthing a few yers back... no chain! Of course he wasn't the most competitive, but this is a fun event as opposed to serious competition, I am just going for glory ;)
Oh lord, haha. even better. I looked and looked for rules on the event, other than "no chain or secured chain and a helmet, and sign the waiver" I found nothing. Personally if I wanted to win for the sake of winning , a old shaft drive bike would fit the bill. Many other chainless ways to transfer power. Doesn't say you cant have a electric motor? belt drive, any bike nearly can have a belt drive kit and internal geared rear hub! HA! Big ol honkin set of rotors and hydro brakes. You'd have a few beers in ya before second place came down. Or maybe stay chainless and beltless with something similar to this http://glendalecycles.com/bike-technology/chainless-shaft-drive-bicycles/

Sorry I thought about this wayyyy too much :D
 

Latest posts

Back
Top