Soyo 40a
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Category:  Tires
Name:  Soyo 40a
Brand:  Soyo
Model:  40a
Years:  1980's - Current
Country:  Japan
Weight:  140 grams
Added By: steveinjava on 08/27/08
Updated By: steveinjava on 08/27/08
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Soyo 40a
Label MarkingsSoyo 40 ATire TypeTubular
SizesMax PSI ?
Sidewall TypeDesigned Use Road Race
General Information
These were 20mm and so I reckoned they were usable on a rear wheel. The 'a' post script meant it had an impression tread which didn't aid its grip sadly.
They were fast but would do circa 150 miles of time trialling before they got thin. Like all Soyos they were cheap (About £15 when Clements of similar weight were double that)
Quality:Rarity:
 
 
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Brand Information(click to expand)
Japanese manufacturer who sold a lot of track tubs for the popular keirin races in Japan. They were cheap and fairly true. There worst feature was the very hard treads which were not good in the dry but much worse than that in the wet!
They also produced cyclo cross tubs with tractor treads and standard road race models although it was the track ones the UK saw.
A mail order concern called "Sprint Tubs" based in the Wirral seemed to be the main seller- advertising in the back of Cycling through the 80's.
 
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