Some videos need little to no explanation to make sense and this is one of those videos. You read the title so dive in, watch and enjoy.
Showing posts with label Bike. Show all posts
Showing posts with label Bike. Show all posts
Tuesday, July 31, 2012
Thursday, March 15, 2012
1970 Harley Davidson Custom Sportster Flat Tracker
This sweet, low and tight Ironhead is currently up for bid on ebay, get over there and check it out. Dude wants cash in hand for the bike so be ready for a deposit. looks to be a great low budget bike for good times.
"Up for bid is a 1970 ironhead chopper/ratrod aptly named The Kwakster. the bike looks old, but make no mistake it is a fresh build. its rough tough, and dirty as i intended it. inspired by the raw awesomeness of the flattrack and baordtrack bikes. the motor is mostly rebuilt with a complete top end bored .040" over with forged pistons. completely rebuilt the cam chest with all new bushings, and shims, and installed high performance P-cams. bike is pretty darn quick. went through the transmission, and put all new clutches as well.
bike is hardly broken in, ive put under 200 miles on it since. completely rebuilt the kicker with all new gears and bushings. kick works very good. has working electric start as well (thou i never use it) with brand new jack shaft gear. brand new solid state voltage regulator, new gel battery, new brushes in the generator, and a complete rewire. bike uses no key, only a hidden very high quality, rubber sealed, made in the U.S.A. on off switch. the carburetor on this bike is a retro-fitted, Italian made dellorto. very premium expensive carb. simelar to a round slide makuni, but with an accelerator pump. the oil tank is a 60's Mercedes coolant over flow tank that i converted with an old triumph gas cap. works perfectly. made out of brass, these things look really cool polished up as well, but keeping with the ratty theme i decided to leave the original patina. all new oil lines, an oil cooler, and an oil filter mounted to the front motor mount. the vintage brass fire extinguisher under the seat is one of my trade marks. its now a tool box to house the necessary tools that any vintage bike should have on it (demonstrated in video).
The hardtail is a K-model style tig welded with the continuous loop around the axle plates which is way better, and cooler looking in my opinion. quite a bit more expensive than your standard hardtail as well. the exhaust i custom made out of aluminized steel j'bend header tubing. the gas tank im not real sure what model it came of of, i think its a 70's enduro. this feature really throws people for a loop. i love it. tank has no rust inside. the seat is off of a 60's Sears brand bike, very cool. its very springy, and for those long rides im including a nice thick gel seat cover. the wheels are straight with a new set of bridgestone t/w tires, and tubes. they are all terrain tires, very well suited for road, and look killer. the handlebars are two peice with wrapped hockey tape for grips.
If you noticed theres no brake lever on the bars. thats because i fabricated a dual action brake pedal to operates both the front (hydraulic disc), and rear (drum) brakes. i did this because i hate having a big ol brake cylinder muckin up a cool set of handlebars. the mechanism is fully adjustable in either direction. for normal braking you always want to lead with the rear brake. thats how i have it set now. when braking normally its mostly rear with a little front, but if you push harder it will stop on a dime utilizing the full capabilities of the front brake, and rear brake. the tail light is a early 70's old xs650 blinker that i gutted, and refitted dual filament lighting. both brake and running lights work well. the points cover is a blinker lens. due to the heat, and its vintage nature it has cracked, so you might need a new one soon. i may have another lens i can give you, or a standard points cover, theyre very inexpensive. the battery box i fabricated out of some angle iron, and covered it with a cool vintage (antique) TN licence plate. i think thats about it. feel free to ask any questions, i will answer very promptly in most cases."
Bid on this bike now:
"Up for bid is a 1970 ironhead chopper/ratrod aptly named The Kwakster. the bike looks old, but make no mistake it is a fresh build. its rough tough, and dirty as i intended it. inspired by the raw awesomeness of the flattrack and baordtrack bikes. the motor is mostly rebuilt with a complete top end bored .040" over with forged pistons. completely rebuilt the cam chest with all new bushings, and shims, and installed high performance P-cams. bike is pretty darn quick. went through the transmission, and put all new clutches as well.
bike is hardly broken in, ive put under 200 miles on it since. completely rebuilt the kicker with all new gears and bushings. kick works very good. has working electric start as well (thou i never use it) with brand new jack shaft gear. brand new solid state voltage regulator, new gel battery, new brushes in the generator, and a complete rewire. bike uses no key, only a hidden very high quality, rubber sealed, made in the U.S.A. on off switch. the carburetor on this bike is a retro-fitted, Italian made dellorto. very premium expensive carb. simelar to a round slide makuni, but with an accelerator pump. the oil tank is a 60's Mercedes coolant over flow tank that i converted with an old triumph gas cap. works perfectly. made out of brass, these things look really cool polished up as well, but keeping with the ratty theme i decided to leave the original patina. all new oil lines, an oil cooler, and an oil filter mounted to the front motor mount. the vintage brass fire extinguisher under the seat is one of my trade marks. its now a tool box to house the necessary tools that any vintage bike should have on it (demonstrated in video).
The hardtail is a K-model style tig welded with the continuous loop around the axle plates which is way better, and cooler looking in my opinion. quite a bit more expensive than your standard hardtail as well. the exhaust i custom made out of aluminized steel j'bend header tubing. the gas tank im not real sure what model it came of of, i think its a 70's enduro. this feature really throws people for a loop. i love it. tank has no rust inside. the seat is off of a 60's Sears brand bike, very cool. its very springy, and for those long rides im including a nice thick gel seat cover. the wheels are straight with a new set of bridgestone t/w tires, and tubes. they are all terrain tires, very well suited for road, and look killer. the handlebars are two peice with wrapped hockey tape for grips.
If you noticed theres no brake lever on the bars. thats because i fabricated a dual action brake pedal to operates both the front (hydraulic disc), and rear (drum) brakes. i did this because i hate having a big ol brake cylinder muckin up a cool set of handlebars. the mechanism is fully adjustable in either direction. for normal braking you always want to lead with the rear brake. thats how i have it set now. when braking normally its mostly rear with a little front, but if you push harder it will stop on a dime utilizing the full capabilities of the front brake, and rear brake. the tail light is a early 70's old xs650 blinker that i gutted, and refitted dual filament lighting. both brake and running lights work well. the points cover is a blinker lens. due to the heat, and its vintage nature it has cracked, so you might need a new one soon. i may have another lens i can give you, or a standard points cover, theyre very inexpensive. the battery box i fabricated out of some angle iron, and covered it with a cool vintage (antique) TN licence plate. i think thats about it. feel free to ask any questions, i will answer very promptly in most cases."
Bid on this bike now:
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| 1970 Harley Davidson Custom Sportster Flat Tracker |
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| 1970 Harley Davidson Custom Sportster Flat Tracker right profile |
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| Rear hard tailed section of custom sportster |
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| Left profile of custom sportster flat tracker |
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| Top view of custom Sportster flat tracker |
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| 1970 Harley Davidson Custom Sportster Flat Tracker |
Monday, August 29, 2011
Self Inflating Bicycle Tires
Science breaks new ground and engineering steps in to build the infrastructure. Noticing the genius of the self inflating tire could be a completely game changing product and one that ultimately advances future products. Don't just listen to us ramble on, peep the video and then go over to kickstarter.com to help fund a product that might eventually make its way over to the motorcycle realm.
About this project
Imagine taking your bicycle out of the garage and never having to fill up the tires or even check the pressure. Or imagine yourself being able to change your tire pressure on-the-fly with a simple adjustment from the handlebars. Our project is to bring two self-inflating bicycle tires to market, the City Cruiser and City Pro. Both tires are intended for the urban cyclists and both tires incorporate the patented PumpTire technology.
With your help we can bring this patented technology to cyclists everywhere!
Why Bicycle Tires Lose Pressure
Bicycle tires lose pressure due to air molecules diffusing through the rubber sidewalls. This requires cyclists to fill their tires on a fairly regular basis due to the high operating pressures (up to 120 psi) and thin sidewalls of most bicycle tires. PumpTire solves this problem by incorporating a pumping mechanism directly into the tire. And this means ... fewer pinch flats, no more pumping, hands stay clean, less time getting ready and more time on the saddle.
Overview of the PumpTire System
Each PumpTire set consists of 3 components – a tire, a detachable valve and an inner tube. Unlike traditional tires, the PumpTire inner tube clips into the tire to enable air to pass from the tire to the tube. When the pump is working, air moves from the atmosphere, through the valve and into the lumen surrounding the outside of the tire. From there the air is pushed into the tube. Once the desired pressure is reached, the valve senses the increase in pressure and closes the air pathway so no more air is pumped into the tire. The system works on normal rims and does not require any special equipment or modifications.
The valve assembly works by simply screwing it into the valve stem on the inner tube. Although the valve stem looks similar to standard Presta/Schrader stems, it’s actually a custom design that allows air to enter the tire before being pushed into the tube. The valve is either a fixed pressure valve that shuts off once the desired pressure is reached or it’s a user adjustable valve as shown in this drawing. Turning the valve, adjusts the pressure higher or lower to reach the desired setting. The top of the valve has an air inlet and is compatible with Schrader or Presta fittings to use with a traditional pump if desired. A filter keeps dirt, water and other debris from entering the tire.
City Cruiser for Casual Riders (26" x 1.5" tire)
The City Cruiser is designed for the casual, urban cyclist. It’s a 26” x 1.5” tire with a set pressure valve. The pumping mechanism will pump from a flat up to 65psi. It has a moderate tread design and is intended mostly for pavement.
City Pro High Performance Tire (700c x 28mm)
The City Pro is a high performance tire with a 100 psi maximum pressure. It’s a 700c x 28mm tire. The tire works in conjunction with a high performance user-adjustable valve which allows the user to set the pressure from 65-95psi. This tire is designed for the avid cyclist who is constantly seeking better performance from themselves and their equipment.
