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水野学園 WEBSITE
TOSHIKI MOTOHASHI
/
本橋 利樹
Chopy
[ Commuter bike ]
Steel
免許が無くても乗れるチョッパーバイクがコンセプトです。街中にありふれた実用性の高い自転車とは対照的に、個人の所有欲を掻き立てる自転車を作りたいと考えました。憧れのスポーツカーに視線を奪われる様に、免許要らずのChopyをきっかけにチョッパーバイクに憧れを抱いていただけると幸いです。
BBの長さが足りなかったためTIG溶接を用いて二つのBBを接合した。BBに歪みが出てしまうと組み付け時にパーツが付かなくなってしまうため精度を出すのに神経を使いました。
ダウンチューブを25.4ミリにする代わりに2本使い三角にした。これによりBBだけが飛び出すことを防ぎバイクらしいゴツい印象を付ける事ができた。
一つ前の画像のものと後ろの曲げパイプを繋げ、前側の補強パイプを繋げ合わせた画像。このフレームはジグが一切使えないため精度を出すのがとても大変で自分の目と定盤を頼りにセンターを出した。
仮で部品を取り付けて塗装前に狂いが出ていないかの最終確認をした。こらのおかげで塗装後の組み付けで必要なパーツや注意点を把握する事ができた。
塗装が完了し無事組み付け試乗が出来た。塗装でこだわった点はフォークパイプがメッキ加工されているものだったためそれを活かして1番目立たせるため他を黒一色で塗った。まだバーテープとその処理もフレーム全体のイメージを邪魔しない様に気をつけた。
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