by Bobbie Martin
The Raleigh-manufactured Moulton Mark Three predated the space frame in the early 1970's. Though non-separable, these bikes were noted for their smooth and solid riding characteristics. The rear suspension rubber "Squash Ball" and lower pivot resemble the modern Moultons produced today.
The Raleigh 26tpi bottom-bracket was rethread to standard BSC threading and cut down to the normal width. We used a Shimano UN72 BB, but still had to cut the rings slightly.
The new crank is a Campagnolo Triomphe—one I had on hand. I have always liked the look of these. This one has been modified for a single outer chainring (53 tooth).
The front wheel was built-up with a narrow flange Sansin hub spaced to 88mm to fit the MK3 front forks. Velocity USA supplied a pair of hard to find 36 spoke 16" Aeroheat rims. Tires are Schwalbe Marathons.
…including cutting down the front axle and skewer, giving us a nice quick-release front wheel that works like a champ.
New Squashball provided by Moulton Preservation.
Yours in Cycling,
North Road Bicycle Imports
P.O. Box 840
166 Courthouse Square
Yanceyville, NC 27379
toll free: 800-321-5511