Morrow Coaster Brakes

by Sheldon "Feet" Brown

This page is just about the specifics of the Morrow coaster brakes

Refer also to the main Coaster Brake Service Page

Morrow coaster brake service manual

Brochure showing operation of Morrow coaster brake

Parts list for Morrow models B and V

Please note, we do not possess ANY Morrow parts for sale, please don't ask!

Morrow was for many years one of the top brands of coaster brake. The "slotted sprocket" was a Morrow specialty, making it possible to replace a broken spoke without needing to remove the sprocket.

Morrow models use a split sleeve type brake shoe.

When the brake is applied, the thread in the Driving Screw (112/307) presses the Nut and Sleeve Expander (111) against the Brake Sleeve (112) expanding the brake sleeve so that it presses against the inside of the hub shell. The Sleeve Expander With Teeth (113) expands the left end of the Brake Sleeve (112), and its teeth engage the matching teeth in the Cone Arm Side (114) to prevent the shoe from rotating with the hub.

When you pedal forward, the thread in the Driving Screw (112/307) pulls the Nut and Sleeve Expander (111) against the Brake Sleeve (112) against the Clutch Ring (110) which expands and grips the inside of the hub shell.

Here are some images from the 1938 Island Cycle catalogue, and a photo from Aaron Goss.

Photo of Morrow brake parts by Aaron Goss -- click the photo for a larger version

Thanks to BikeMike for the reproduced Island Cycle Catalogue

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