Like all Metco Motorsports idler pulleys, these pulleys are precision-machined from a single piece of billet and then hard-coat anodized on the belt surface and rear face. A billet bearing cover with a stainless-steel socket head fastener is included.
The 8-rib version of this pulley is 1.5" wide at the belt surface, and the the 10-rib version is 1.75" wide. The pulley offset is similar to what is used on the blower drive in the Lightning/Cobra application, but this pulley may work in many other applications. 63mm equates to approximately 2.5" in diameter.
Both the 8 and 10-rib versions of this pulley are machined to accept two heavy-duty bearings, making these pulleys as bullet-proof as possible. These pulleys are offered in this size to accommodate custom installations, and it is up to the installer to verify proper fitment prior to ordering.