Grayskull

Well it all depends on you - your strengths I recently changed from a 9 speed Tiagra to a 10 speed Ultegra groupo Tiagra had a 39/52 and a 11-25 Ultegra has a 39/53 and a 11-23 I rode for the first time yesterday and was quite a change! I think i might opt for a 11-25 cassette if I can swap out On the Blade: the higher the "high"number - the more speed you will get on the flat the lower the "low" number the easier you will find the climbs so a 39/52 vs a 39/53 - the 39/53 will be giver you a higher top end while a 34/50 vs a 36/50 - the 34/50 will be easier for climbing on the cassette the reverse applies the more teeth the easier for climbing so a 11-23 vs a 11/25 - the 11/25, the 25 tooth blade will make it easier on the climbs i hope this is correct - im still learning meself

RIP Craig and condolences to the family and friends during this difficult time Respect to RickA for your quick thinking that lead to family being notified in due time - truly honourable

Sad Hang in there and good luck with the Chemo Ps. also that some fruit's pit extract is good for helping out with cancers - tho i cant seem to remember which one.... they say its nasty bitter tho!