About Keirin Racing
I found HP of a bicycle race introduced in English:
Please watch it by all means. It will be for you to understand Keirin deeply.
This is frame maker KALAVINKA homepage
I explain a part of a bicycle using for you with Japanese Keirin Japanese professinal Keirin rider must use a frame and a part made in Japan decided with a rule.
The reason is because it needs that it must be made in Japan as a purpose by development of bicycle industry of an own country.
Japanese Keirin is sports of a gambling games. A vast bet hangs with one race. It is bet on one race more than an average of JPY 10,000,000 Yen (about $84000). $840,000 are bet in a big race. Therefore, there is the danger that trouble of a bicycle in a race develops in a case.
Therefore a NJS part is produced in high efficiency to win fairly. A NJS part is very expensive in Japan.
SHIMANO D/A FC-7710 (hollowtech crank)>$225
SHIMANO D/A Track hub>$141
MKS(MIKASHIMA) ROYAL NEUVO>$100
An examiner pays attention to a flat of a tire in particular. A price of one tire using with Japanese Keirin is $ 83. When there is contact with a very sensitive tire, I must change it. A mark of NJS sticks to an usable part with Keirin entirely. I cannot use the Parts where a mark of NJS does not support for a race. The frame which I can use with Japanese Keirin increases so long as the maker which an association authorized.
There is about 40 number of a maker authorized with Japanese Keirin.
I introduce my bicycle to you in detail:
Frame maker:KALAVINKA(Establishment of a business 30 years)
Frame Building Materials:Cr-mo Double Bated full set(ISHIWATA 017 Record Breaker)
Frame lugs & end:KALAVINKA Originals
Bars:NITTO B125AA 390mm (ALUMINIUM) Wides
Stems:NITTO NJ-PRO 105mm (STEEL) 58degree
Pedals:Suntour Superbe Track mod. Cr-mo shaft
Toe Clips:CAMPAGNILO(NJS) Steel(S)Size
Cranksets:SHIMANO D/A Track FC-7710 (hollowtech crank) 165mm
Chainring:SHIMANO D/A Track FC-7710 47T(1/8 Chain) Super Finish(Own modification)
Bottom Brackets:SHIMANO D/A BB-7710 (Cassettes Type)
Hubs:CAMPAGNOLO C-Record Pista(NJS) 100mm/120mm 36H
Chain:IZUMI V Chain 1/2x1/8x98links
Cogs:SHIMANO D/A SS-7600 13T(Steel/Super Finish)Own modification
Rims:ARAYA Gold Lavels(NJS) 320g 36H
Saddles:KASHIMA Kashimax R-2 Steel wire based
Straps:MIKASHIMA Fit $B&A;(J Sports)
Seatposts:NITTO W44 27.2mm Diameter
Tires:SOYO GOLD STAR (Seamless made) 190g
I do special processing of a part as I introduce it with HP
Chainring:SHIMANO D/A Track FC-7710 47T(1/8 Chain) Super Finish(Own modification) Mirror finish!! low friction
Cogs:SHIMANO D/A SS-7600 13T(Steel/Super Finish)Own modification. Nickel plating (I sharpen a corner)
In addition, please hear it if I did not understand it. Good riding to you.
© Toshihiko Tomita, 2004
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