top speed:
well, top speed can be finalized same. if gs has more power it has more weight
parts availability: right now, it will be same with same dealerships, but due to GD's increasing sale, its parts will be easy to reach.
fuel consumption: surely gd, btw, instead of making a new topic, u shld check their fan club topics etc. then finalize urself, considering ur needs & bike specs.
regards
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