Soyo 45a
Main Photo
Category:  Tires
Name:  Soyo 45a
Brand:  Soyo
Model:  45a
Years:  N/A
Country:  Japan
Added By: steveinjava on 08/27/08
Updated By: steveinjava on 08/28/08
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Label MarkingsTire Type
SizesMax PSI 
Sidewall TypeDesigned Use 
General Information
Not certain of weight but around 160 grams I would estimate. They were 20mm.
The 'a' meant it had a feint impression tread. They were still fast and still had next to no grip! REAL RACING!
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Resources:Reference & Charts
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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