18307 Ceramic Bearing – 18x30x7mm Ceramic Ball Bearing ABEC 7 Cycling Bearing

18307 Ceramic Ball Bearing from World Champions ACER Racing. This is a 18x30x7mm ceramic ball bearing with an 18mm inner diameter x 30mm outer diameter and 7mm width. Uses diamond polished Silicon Nitride Ceramic Balls. Price is for one 6903 ball bearing so please choose the quantity you wish to order. The advantages of our ceramic bearings are vast including lighter weight, lower friction and heat, greater speeds and much greater durability especially for competitive cycling use. Fully sealed on both sides. We are the industry leader since 1989.

Sun CR-18 Rims (2) 20×1.5″ (406) NOS New 32 Hole Polished Silver 90s

NOS / New / Unbuilt Sun Rims 20×1.5″ Bicycle Rims. Listing is for two rims. 32 hole, 406mm bead seat diameter, eyeletted, polished silver finish, 335 grams ea. In production for 4 decades, the CR-18 is a proven box section rim for many disciplines. Buyer to pay $20.00 USPS Ground Advantage shipping with tracking. Buyers outside the Continental US to use Ebay’s International Shipping service. Thanks for looking!