Dave is correct, however I beleive that some early sprints came with the 6"wheel as stock and was kinda hit or miss depending on the bike.
I may be wrong though.
For wheels that fit all SSSA rear wheels will fit as well as the fronts. IIRC the 1050s use a different speed pickup and has a different set of spacers. With a wee bit o work it can be made to fit, I beleive Decosse has an example of how to convert that some where on here.
I would assume that your looking to use the 1050 S3 so youd have to run a new spacer and modified speed pick up to use the front, the rear will bolt on though.
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