When I ride my motorcycle, I need to wear warmer clothes than I would when I walk because of the wind.
When I ride my bike, I really feel the wind, so I dress warmer than I would when I'm on foot.
この場合、次のような言い方ができますよ。
ーWhen I ride my motorcycle, I need to wear warmer clothes than I would when I walk because of the wind.
「バイクに乗るときは、風があるので歩く時より暖かい格好をする必要がある」
to ride my motorcycle「バイクに乗る」
to wear warmer clothes「より暖かい服を着る」
ーWhen I ride my bike, I really feel the wind, so I dress warmer than I would when I'm on foot.
「バイクに乗る時、風をすごく感じるので、歩く時より暖かい格好をします」
to dress warmer「より暖かい格好をする」
on foot「徒歩で」
ご参考まで!