Tall Bike Project
- Thread starter lowracer
- Start date
lowracer
New Member
This TallBike pic was forwarded to me from user CurtisFox.
Tall bikes have been around for awhile & may be making a resurgence?
I couldn't image the attention this bike gets. People literally stop to take pics and say nice things about it. I guess being 'different' has its perks.
-Low-
Tall bikes have been around for awhile & may be making a resurgence?
I couldn't image the attention this bike gets. People literally stop to take pics and say nice things about it. I guess being 'different' has its perks.
-Low-
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lowracer
New Member
Since the weather turned ugly here I had some time to tinker on the bikes. 1st I changed the front fork on '2High', removing the 700c fork and installing the Bloodline 26" trials fork. I also installed the Sun Rhyno lite front wheel I've been wanting to use. I also removed the rear 700c wheel & installed a matching Sun Rhyno lite 26" wheel. I haven't tested it yet, but am liking the changes.
2nd, I switched my MTB from a single speed conversion back to an 8 speed cassette. I had a retro barcon shifter that I wanted to rig up like the expensive Pauls Thumbie. I bought 2 heavy duty hose clamps and meshed them together to hold the shifter...I call it the Thumbie Cheapy...lol
See pics
-Lowracer-
2nd, I switched my MTB from a single speed conversion back to an 8 speed cassette. I had a retro barcon shifter that I wanted to rig up like the expensive Pauls Thumbie. I bought 2 heavy duty hose clamps and meshed them together to hold the shifter...I call it the Thumbie Cheapy...lol
See pics
-Lowracer-
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Yep they did the same thing back in 58 when i built it,some even had to go arund the block and takes a second look. I seen it in Popular Machanics mag.
Thanks Lowracer..................Curt
lowracer
New Member
I have been planning the addition of an engine to '2High' and this is what I think I'm going to do.
Originally I wanted to use the spread road bike fork and make it front wheel engine drive to a rear wheel installed into the fork.
Now, I think I'm going with a dual freewheel setup on the rear wheel. One for pedaling, the other for engine drive. This will give me two modes of power input totally independent of eachother. I'll mount the engine in frame (off to the left) and use a 5:1 pocketbike transmission. The bottom bracket on the bottom bike is the jackshaft @ 46T:26T. Engine will have a 10T and rear wheel 22T or 24T (I have both chainrings). I'm not looking for top speed here...I'll probably also swap back to the upright MTB handlebars and install the huge ATV fairing.
-Low-
Originally I wanted to use the spread road bike fork and make it front wheel engine drive to a rear wheel installed into the fork.
Now, I think I'm going with a dual freewheel setup on the rear wheel. One for pedaling, the other for engine drive. This will give me two modes of power input totally independent of eachother. I'll mount the engine in frame (off to the left) and use a 5:1 pocketbike transmission. The bottom bracket on the bottom bike is the jackshaft @ 46T:26T. Engine will have a 10T and rear wheel 22T or 24T (I have both chainrings). I'm not looking for top speed here...I'll probably also swap back to the upright MTB handlebars and install the huge ATV fairing.
-Low-
Otero
Member
lowracer
New Member
Last night, I started working on the rear wheel.
It took a bit of experimenting, but I got it figured out & it works really nicely.
I am using a 16T freewheel on the inside for pedal drive, & a modified MTB 22T chainring bolted to a scooter 4 hole freewheel on the outside for engine drive (holes line up perfectly, just required a little grinding of the chainring bolt tabs). I had a set of 10mm axle extenders from a past project to use on one side to get a longer axle length for bolt on installation (probably run a skewer thru it for added strength). Next step is making an engine mount in-frame.
Not sure if the bottle holder bolts (4 of them) are strong enough to mount the engine? (probably pull thru). I may use the bolt holes but add some strong hose clamps for added security. I really dont want to drill the frame though this was a 'dumpster diver special'.
-Low-
It took a bit of experimenting, but I got it figured out & it works really nicely.
I am using a 16T freewheel on the inside for pedal drive, & a modified MTB 22T chainring bolted to a scooter 4 hole freewheel on the outside for engine drive (holes line up perfectly, just required a little grinding of the chainring bolt tabs). I had a set of 10mm axle extenders from a past project to use on one side to get a longer axle length for bolt on installation (probably run a skewer thru it for added strength). Next step is making an engine mount in-frame.
Not sure if the bottle holder bolts (4 of them) are strong enough to mount the engine? (probably pull thru). I may use the bolt holes but add some strong hose clamps for added security. I really dont want to drill the frame though this was a 'dumpster diver special'.
-Low-
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lowracer
New Member
Otero,
Thanks for the offer. I ended up swapping rear axles with a wheel I had laying around (a solid 10mm). I ended up putting two solid days of work into '2High' and its now ready for its maiden voyage under engine power. I ran out of daylight today & will wait till either tomorrow or the next day to give it a whirl.
Here is a rough pic of the bike setup. Its got 3 chains, 3 rear derailleurs, 6 chainrings, BMX 8" rise handlebars and a Tanaka 47cc engine (not the 47R, but I do have one currently on 'The Beast'). Its currently geared for 27-29 mph under engine power which is plenty for this contraption. Under pedal power its only good for 10 mph at 100 rpm's...(I wont be pedaling much). I didn't drill any holes in the bicycle frame (its not my thing). Since the strongest tube on '2High' is the bottom bike's seat tube (I have a long ceiling fan drop pipe down my seat tube which holds the top bike in place), I attached a piece of long 1/4" angle aluminum 1st to the 2 water bottle holes, then I clamped the top section around the seat tube after grinding a slot in the angle aluminum, and at the bottom, I used a Heavy Duty clamp. This angle aluminum holds 2 of the mounting bolts for the pocket bike transmission. The other two bolts brace the transmission to the down tube (same angle aluminum bolted, then H/D clamped. The engine is solid as a rock in there.
I'll post more pics when I can get 2High out in the daylight.
Cheers,
-Low-
Thanks for the offer. I ended up swapping rear axles with a wheel I had laying around (a solid 10mm). I ended up putting two solid days of work into '2High' and its now ready for its maiden voyage under engine power. I ran out of daylight today & will wait till either tomorrow or the next day to give it a whirl.
Here is a rough pic of the bike setup. Its got 3 chains, 3 rear derailleurs, 6 chainrings, BMX 8" rise handlebars and a Tanaka 47cc engine (not the 47R, but I do have one currently on 'The Beast'). Its currently geared for 27-29 mph under engine power which is plenty for this contraption. Under pedal power its only good for 10 mph at 100 rpm's...(I wont be pedaling much). I didn't drill any holes in the bicycle frame (its not my thing). Since the strongest tube on '2High' is the bottom bike's seat tube (I have a long ceiling fan drop pipe down my seat tube which holds the top bike in place), I attached a piece of long 1/4" angle aluminum 1st to the 2 water bottle holes, then I clamped the top section around the seat tube after grinding a slot in the angle aluminum, and at the bottom, I used a Heavy Duty clamp. This angle aluminum holds 2 of the mounting bolts for the pocket bike transmission. The other two bolts brace the transmission to the down tube (same angle aluminum bolted, then H/D clamped. The engine is solid as a rock in there.
I'll post more pics when I can get 2High out in the daylight.
Cheers,
-Low-
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lowracer
New Member
Today I finally got to ride '2High' using the engine around the block a few times.
All I can say is WOW! This thing is too much fun to ride.
Up until now, aside from the new fork I bought on eBay for $20, I hadn't spent any new money building it. Today, I ordered a new 22T freewheel for $14. It has 'all the way' threading so that I can swap the 2 freewheels around and use the 22T on the inside and the 16T on the outside (I got it vice versa now). This will allow me to run a larger pedaling chainring, moving it further out. It also allows me to remove the 2 bottom bracket spacers I am currently using on the engine driven lower BB. I had to push the smallest 26T chainring further out for a straight chainline to meet the current outside 22T scooter freewheel. I'm going to add my huge ATV fairing to the BMX handlebars & possibly the Hugh Jass Serfas saddle (couch).
Here are some pics of my ghetto engineering
Cheers,
-Lowracer-
All I can say is WOW! This thing is too much fun to ride.
Up until now, aside from the new fork I bought on eBay for $20, I hadn't spent any new money building it. Today, I ordered a new 22T freewheel for $14. It has 'all the way' threading so that I can swap the 2 freewheels around and use the 22T on the inside and the 16T on the outside (I got it vice versa now). This will allow me to run a larger pedaling chainring, moving it further out. It also allows me to remove the 2 bottom bracket spacers I am currently using on the engine driven lower BB. I had to push the smallest 26T chainring further out for a straight chainline to meet the current outside 22T scooter freewheel. I'm going to add my huge ATV fairing to the BMX handlebars & possibly the Hugh Jass Serfas saddle (couch).
Here are some pics of my ghetto engineering
Cheers,
-Lowracer-
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probably not,Curtis
Intrepid Wheelwoman
New Member
Seriously radical 
Even though my family's bloodline carries the genes for especially strong bones I still don't fancy the idea of falling off at my age, - so I guess you can count me out too.
Even though my family's bloodline carries the genes for especially strong bones I still don't fancy the idea of falling off at my age, - so I guess you can count me out too.
lowracer
New Member
LOL,
Mounting & dismounting is easy (for flexible folks).
I did jump off twice to simulate an emergency maneuver (once was for real...lol) & its not high enough to cause injury. I've got a few more tweaks to do to it before taking it on an epic journey (ride it for work purposes instead of the car). I'll post details as it unfolds.
-Low-
Mounting & dismounting is easy (for flexible folks).
I did jump off twice to simulate an emergency maneuver (once was for real...lol) & its not high enough to cause injury. I've got a few more tweaks to do to it before taking it on an epic journey (ride it for work purposes instead of the car). I'll post details as it unfolds.
-Low-
Attachments
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lowracer
New Member
Otero,
Dang...I guess I've been lucky all these years!
I crashed a Yamaha FJ1100 motorcycle at high speed on sand, slid, hit a curb with my shoulder & flipped twice in the air onto someones front lawn & ended up with serious road rash and soreness & a totalled bike.
Once when cycling on a group ride, we had two trains of riders going ludicrous speed & somehow a three legged dog ended up between the trains. I ended up broadsiding the dog, flying over the handlebars, one full flip in the air and smack down on my left heel and back.
I ended up completing the group ride purely on adrenaline. I got out of bed the next morning limped down the stairs, had to sit on the potty to 'P', fainted from the ankle pain, landed flat on my face & woke again with a bleeding busted up nose not knowing where I was. I couldn't walk for a week, but healed up fine but left with a cracked Titanium Litespeed Blade frameset
-Low-
Dang...I guess I've been lucky all these years!
I crashed a Yamaha FJ1100 motorcycle at high speed on sand, slid, hit a curb with my shoulder & flipped twice in the air onto someones front lawn & ended up with serious road rash and soreness & a totalled bike.
Once when cycling on a group ride, we had two trains of riders going ludicrous speed & somehow a three legged dog ended up between the trains. I ended up broadsiding the dog, flying over the handlebars, one full flip in the air and smack down on my left heel and back.
I ended up completing the group ride purely on adrenaline. I got out of bed the next morning limped down the stairs, had to sit on the potty to 'P', fainted from the ankle pain, landed flat on my face & woke again with a bleeding busted up nose not knowing where I was. I couldn't walk for a week, but healed up fine but left with a cracked Titanium Litespeed Blade frameset
-Low-
Otero
Member
Say Low.
You should check out 'Jimmy's Tallbike Adventures' on:
World Cycle Videos, on Vimeo, currently on the second
page. These guys are touring Australia, ripping down
grassy hillsides, travelling with all the essentials, sleeping
bags, campstoves, a box of wine strapped in the fork.
To be fair, a couple of the bikes are just semi-tall.
You should check out 'Jimmy's Tallbike Adventures' on:
World Cycle Videos, on Vimeo, currently on the second
page. These guys are touring Australia, ripping down
grassy hillsides, travelling with all the essentials, sleeping
bags, campstoves, a box of wine strapped in the fork.
To be fair, a couple of the bikes are just semi-tall.