Specification Brand : MAPLE ACE BulletPoint : BBB post mount adapter for disc brakes Power Mount BBS-91/92 - Adapter for use of standard post mount systems (160mm) with 180mm or 203mm brake discs - Including 2 screws and 2 washers - Weight: 20g or 29g - Colour: Black BulletPoint1 : 12B-2 Master Connecting Link is a 3/8 inch pitch BS for 12B-2 Roller Chain Duplex Double Strand BulletPoint2 : Ideal for Replacement and OEM Applications BulletPoint3 : All Maple Ace Chains are Shot-peened, Pre-loaded, Pre-lubricated, Wear-Resistant, and Fatigue Resistant BulletPoint4 : DESIGNED FOR HEAVY-DUTY AND COMPATIBLE WITH EXTREME CLIMATE BulletPoint5 : Specializing in the Exclusive Production of Chains with High Performance and Long Life. Color : Black ExternallyAssignedProductIdentifier : 8675178166180 ExternallyAssignedProductIdentifier1 : 0841339058092 ExternallyAssignedProductIdentifier2 : 841339058092 FitType : Universal ItemDisplayDimensions_Length : 3.5 centimeters ItemDisplayWeight : 50 grams ItemName : MAPLE ACE 12B-2 Connecting Master Link for Roller Chain Double Strand (Qty 2) ItemPackageDimensions_Height : 5.2 centimeters ItemPackageDimensions_Length : 3.5 centimeters ItemPackageDimensions_Width : 4 centimeters ItemPackageQuantity : 2 ItemTypeKeyword : roller-chains Manufacturer : MAPLE ACE Material : Carbon/Alloy Steel ModelNumber : 12B-2-CL NumberOfItems : 2 PartNumber : 12B-2CL Pattern : Lightweight ProductDescription : Specification: Model: #60-2 Double Strand Roller Chain Connecting Links- Offset Link Half Link Carbon Steel for 12A-2 #60H-2 Roller Chain Tooth pitch: 3/4"(19.05mm) Material: carbon steel