The very latest model is the XSR (-7), XHR (-8) and XHRC (-9) hyper heavy duty 'X' chain. These are manufactured using the latest revolutionary XP-2 'X' ring joint which reduces friction, increases resistance to stretch and also increases resistance to wear.

This revolutionary 'X' ring joint results in the replacement of the two 'O' ring contact faces with four lubricated faces, this allows the AFAM SR chain to be amongst the best performing in the world!

Chains are rated as follows

• -0 (Standard non 'O' ring)
• -1 (R Heavy duty non 'O' ring)
• -2 (MX2 MotoX non 'O' ring - Gold)
• -3 (MX3 MotoX GP non 'O' ring - Gold)
• -4 (XLR 'X' ring)
• -5 (XMR Standard 'X' ring)
• -6 (XRR Heavy duty 'X' ring)
• -7 (XSR Super heavy duty 'X' ring - Gold)
• -8 (XHR Hyper heavy duty 'X' ring - Gold)
• -9 (XHRC Hyper heavy duty 'X' ring - Red, Blue)

Like many components there's more to a sprocket than you might think!

With over 25 years of experience in producing sprockets AFAM have refined their manufacturing techniques to such a level that their standards now exceed those of the OEM's. Through the use of computer programmes, sprocket designs can be stress tested prior to undergoing gruelling field tests...

...All sprockets are made on precision controlled equipment, the teeth are machined to the latest standards to ensure maximum chain life and more efficient power transmission. The sprockets teeth and outside diameter are cut together at the same time to ensure that the teeth are concentric to the sprocket centre...

...Afam's machining is twice as accurate as the industry standard...most OEM sprockets demand a maximum run-out of 0.5mm, all AFAM sprockets have a maximum run-out of 0.2mm!

...Most steel sprockets to be used on motorcycles 500cc or more are heat treated, which changes the hardness of the material. If not done correctly it can produce a brittle part. AFAM use induction hardening to accurately control this process. After hardening, the sprockets are tempered to produce exactly the correct hardness for durability and efficient power delivery. To correct any distortion that may have occurred during these stages, the sprockets are put through a final flattening machine.

...The end result is a top quality product fitted as standard to many Ducati, Aprilia, Voxan and some Yamaha motorcycles.

With over 20 years of expertise in the development and manufacture of chains and sprockets AFAM are highly respected for producing high quality products. Fitted as original equipment on many Ducati, Aprilia and some Yamaha models, they far exceed the OEM quality standards for major manufacturers.