Compatibility issue between shifters and cassette
I am new to this forum and road bikes (well after a 20 year layoff) and I have a compatibility query which I have found conflicting answers to.
Please be gentle with me
I purchased a bike from Ebay a year ago http://www.halfords.com/webapp/wcs/s...Id_165710#dtab
and found I would like to upgrade the Sora shifters to something like 105 or Tiagra for example as the thumb buttons are starting to get on my nerves as cant stay on the drops and change gear.
However, owning to the fact of little funds to spend on I am looking to dip in the murky world of Ebay again and buy a second hand set from Ebay. Looking on Ebay though there doesn’t seem to be much choice of 8 speed shifters available.
My question is, if I bought say a set of Shimano 9 speed shifters would they be compatible with my 8 speed cassette?
Are there any recommendations from you guys when bearing in mind price and performance?
Appreciate any help you can give.