Chainrings

Good condition. Oval design. Black anodized aluminum construction. 110mm BCD. 5 bolt. Standard 5mm bolt holes. 48 Teeth. Teeth show moderate wear. Chainring is straight. Finish has some minor scrapes and scratches on the front and plenty of scrapes and scratches on the back from shifting. Sugino Cycloid...

Good condition. Some light corrosion. Teeth shoe light wear. Steel constuction. 110mm bolt circle. 48 teeth. 1980s ovalized Shimano Biopace design. Made in Japan. Black. Shimano Biopace Steel Chainring 110mm 48 Tooth

Good condition. No damage or corrosion. Teeth shoe light wear. Steel constuction. 110mm/74mm bolt circle. 28/38/48 teeth. 1980s ovalized Shimano Biopace design. Made in Japan. Grey. Shimano Biopace Steel Chainring Set 110mm/74mm 28/38/48 Tooth

Good condition. No damage or deformation. Teeth show light wear. Aluminum alloy constuction. 130mm bolt circle. 42/52 teeth. 1980s ovalized Shimano Biopace design. Made in Japan. Grey. Shimano Biopace Aluminum Chainring Set 130mm 42/52 Tooth

Good condition. No damage or deformation. Compatible with Shimano Selecta splined crank and bottom bracket. Aluminum alloy construction. Finish is decent with moderate scuffs and scratches. Silver. Shimano Selecta B-1 Chainring Spider and Guard