2013-01-19

Miyata Vintage Sports Bike Restoration & Building



I got the frame of the bicycle brand "MIYATA" representing Japan by Yahoo! Auctions. Also you can see MIYATA Industrial Co, Ltd. detail by Wikipedia. The price was 1,500 yen. The price was 4,400 yen including the shipping cost and the handling fee. I purchased this frame in August, last year. The color was red. The frame was very dirty from rust and oil. I dropped dirt and rust using the sandpaper of No. 600. If a frame is deleted, the natural complexion of steel and a white surfacer can be seen. I was going to polish and paint only a rust portion at the beginning. But, I am pleased with the remains of shaving like leopard spots. Therefore, I also deleted the portion which is not rusty and made the handle with sufficient balance. I flushed shaving powder with water. In polish work, powder disperses. Therefore, I became nakedness and ground in the bathroom. The bathroom was dyed pink with red powder and white powder. When shaving a steel pipe with a water resistant paper, if it deletes horizontally from length, gloss will come out. It is better to be rude in oil by hot water and the organic solvent, before oxidization starts. The surface of steel is good to wipe off water with a kitchen paper. The water which trespassed upon the inside of a frame is good to make it remove in a drier and sunlight. I blew twice the transparent lacquer spray purchased for 198 yen. Paint of the frame was completed. The drop handle was got from neighboring bicycle Schopp for nothing. The bicycle Schopp at whom I dropped in by chance reconditions and sells the thrown-away granny's bicycle. The drop handle neglected besides Schopp was said "I want you to sell" to the storekeeper. Then, the storekeeper yielded me the drop handle. The stem, the brake cable, the brake lever, and the bell were attached to the drop handle. I stripped the old bar tape. And the brake and others also removed. The handle had many corrosion and cracks. I polished the handlebar with the water resistant paper of No. 600. Then, the handlebar regained brightness, so that it was surprised.



Frame Detail
The distance from a bottom bracket center to a seat post plug is 530 mm. The bottom bracket is 70 mm in length. Top tube length is 530 mm. Down tube length is 590 mm. Tire size is 700C. M6 screw hole for careers is on a shoulder crown at a front fork. There are an M5 screw hole for careers and a screw hole for torch lights also in the center of a front fork. I attached the Hex Key bolt to all the screw holes. The width of a front fork is 93 mm. End width is 127 mm. Lug is the straight cut which is not a continental cut. The brake outer receptacle is attached to the lower right instead of the top tube upper part. There is no shift cable guide. There is also no pedestal for shift levers. The diameter of a top tube is 25 mm. The diameter of a sheet tube is 28.5 mm. The diameter of a down tube is 28.5 mm. The diameter of a seat post is 25.7 mm.



Taiwan Brando's auxiliary brake lever called TESTACH was knocked down to me in Yahoo! Auctions. The price of the brake lever was 2300 yen including the mailing cost. Weight is 88 g. The diameter of a clamp is 24 mm. The price of the bottom bracket of a cup & corn was 590 yen. 70 mm has new bottom bracket length. Axial length is 128 mm. Probably it is made in China. I like a center pull brake. I purchased the brake set of DIA-COMPE at the auction. The price is about 3,000 yen. Two center pull brakes and one brake lever of DAI-COMPE were attached. However, the wire was not attached to one brake in it being alternate. The outer receptacle in which brake opening is possible was contained in the set.





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