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Bicycle Sprocket

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06-07-19, 08:58 AM

joeponcho

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Bicycle Sprocket

could anyone tell me where I can find a bike sprocket with a 5/8 inch bore, 26 teeth (approx) and with a set screw to attach it to the shaft? I’m building a pedal tractor and this sprocket for the rear shaft.

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06-07-19, 10:03 AM

Rough Rooster

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Surplus Center
Any good farm equipment dealer.
These are weld up hub and sprocket combos.
Have used them for many years for different applications.

RR

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06-07-19, 12:27 PM

joeponcho

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Thanks Rough Rooster. That place has a lot. Also, is bicycle chain #25? I can’t seem to find that info.

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Biking and Bicycles
184 mph ...on a bicycle ... by a woman

F

Fred_C_Dobbs on Sep 19, 2018

No, not downhill, at a place so flat you can see the curvature of the earth: Bonneville. [url=https://www.washingtonpost.com/business/2018/09/18/american-woman-pedals-mph-smashing-record-held-by-men-more-than-years/?noredirect=on&utm_term=.c1c5232d5f52]American woman pedals 184 mph, smashing record held by men for more than 100 years[/url] A 45-year-old American woman shattered a two-decade-old cycling speed record Sunday, pedaling 183.9 mph across Utah’s Bonneville Salt Flats in the slipstream of a specially designed racecar. [url=http://www.bild.me/bild.php?file=5524396IO6YY6Q3RFFKDIPUMM6LAPURNM.JPG][/url] [click to embiggen] The record for paced cycling speed was previously held by Dutch rider Fred Rompelberg, who hit a top speed of 167 mph in 1995. For Sunday’s record-breaking attempt, Denise Mueller-Korenek rode a custom-designed machine featuring a unique double drivetrain capable of propelling the bike forward 128 feet with each revolution of the pedals, a necessity for hitting speeds surpassing the takeoff velocity of the typical commercial jetliner. By contrast, a typically geared bike might travel about 17 feet with each pedal revolution, and racing bikes used in competitions like the Tour de France hit around 30 feet per turn of the pedals in their highest gear.... [url=https://www.washingtonpost.com/business/2018/09/18/american-woman-pedals-mph-smashing-record-held-by-men-more-than-years/?noredirect=on&utm_term=.c1c5232d5f52]www.washingtonpost.com/business/2018/09/18/american-woman-pedals-mph-smashing-record-held-by-men-more-than-years[/url]
Biking and Bicycles
DIY Pedal Tractor Gearing

J

joeponcho on May 03, 2019

I am making my Son a DIY Pedal Tractor and I am trying to get the gearing set up. I was planning on using a bicycle crankset with a small sprocket and for the rear axle I want to use a steel rod (maybe 3/4 inch diameter). The dilemma is finding a bicycle gear to install on that steel rod. I need to find a gear that will fit a 3/4 inch diameter steel rod. The problem is that I'm not sure where to find a gear that has something attached to it that can clamp (or something) onto the axle. Any idea how or where I can find a gear?

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