SHENZHEN B shares rose yesterday in a day of healthy trading, turnover doubling to HK$11.8 million. Mountain-bike manufacturer China Bicycle continued its pattern of being among the most active stocks, falling 0.3 per cent to $6.55 on turnover worth $2.99 million ahead of interim results expected this week. Last month, China Bicycle announced plans to seek a secondary listing, possibly in the United States. The Credit Lyonnais Shenzhen B Index rose 2.69 points, or 0.23 per cent, to 1,167.15. Of the 23 B-share counters listed on the market, seven fell, five rose and 11 were unchanged. Trading was concentrated on China Bicycle and four other counters - China Containers, Southern Glass, Gintian and Tellus. Shares in port operator Chiwan Wharf rose 10 per cent to $4.40 on turnover worth $740,000, after falling 9.1 per cent on Tuesday.