Mar. 4, 2025 By Jessica Militello Spin Bagel, a new health-conscious bagel shop, opened on Feb. 17 in Bayside, replacing the longtime neighborhood staple Top Bagel, which operated for more than 20 years before closing permanently in April. The new shop at 40-18 Bell Blvd. is owned by Queens natives Yvonne and Cliff Themistocleous,…