High Pressure Bicycle Tires : Aluminum Bike And Ladder Lift : Zinn The Art Of Mountain Bike Maintenance.
High Pressure Bicycle Tires
- Involving or using much physical force
- High pressure science and engineering is studying the effects of high pressure on materials and the design and construction of devices, such as a diamond anvil cell, which can create high pressure.
- hard-hitting: aggressively and persistently persuasive; "a hard-hitting advertising campaign"; "a high-pressure salesman"
- (of a salesperson or sales pitch) Employing a high degree of coercion; insistent
- A high-pressure area is a region where the atmospheric pressure at the surface of the planet is greater than its surrounding environment. Winds within high-pressure areas flow outward due to the higher density air near their center and friction with land.
- (Bicycle tire) A bicycle tire is a tire that fits on the wheel of a bicycle, unicycle, tricycle, quadracycle, bicycle trailer, or trailer bike. They may also be used on wheelchairs and handcycles, especially for racing.
A few problems with the original design - low gear range; 'bars too close, not enough length for me on the seatpost.
Also the usual problem with small wheels, if high pressure tyres are used, of bouncy front end.
So this is the modified version. Mods include a cheap pair of suspension forks; longer seatpost; adding a stem to extend the bars by cutting off the top of the original - it happens to be 25mm external diameter so A-headset stems fit. Plus new chainset, and extra front ring, to add to the gear range.
Grandpa Fred on his bicycle
Shot from back seat of tandem bicycle, shot with a 4X5 Cyclone camera which cost $5. The bicycle is a Warton. January 1897 or 1898.
Chicago University in background, on Midway Street, Chicago. The photographer is probably his older brother, Frank.
Fred left home at 14 and went to work for a bicycle company with his older brother, Frank.
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