Personally I would buy the 120mm wheel and buy some 3mm spacers from VeloSolo (almost at bottom of page).
http://www.velosolo.co.uk/shoptrack.html
@Sam started
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Personally I would buy the 120mm wheel and buy some 3mm spacers from VeloSolo (almost at bottom of page).
http://www.velosolo.co.uk/shoptrack.html