I have seen (and owned & ridden) wood-filled tubular rims from Scheeren (the 'Weltmeister' model) and Weinmann. Both came on older track bikes that I owned in the early '70's ( a Gillot & a Masi, respectively). I honestly cannot comment on the reason for them being constructed in this manner; perhaps they were seen by the manufacturer as being 'the best of both worlds' for aluminum & wood. I never noticed a discernable difference in ride quality from all-alloy rims; other than that they seemed to be a lot more delicate than my other Nisi or Fiammi-shod wheels (especially the Scheeren rims!). I also remember using Ukai rims that were plastic-filled (!); these were of very poor quality. Maybe some of the older hands can comment on this issue (Mr. Ernst?)....
Larry Myers Portland, Oregon, USA
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