Couldn't decide so have both.
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or
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Very different bikes to ride, but CRF is 250 and WRF 450. For a 250 I quite like the CRF, they feel a bit more lively than the WRF, although that could be set up.
I would go either and just go with the best price. Neither has had any major updates for a few years so problems should be sorted.
What capacity are you after?