Tks for reply.
The general belief (not sure whether using right word after I chance upon below article) was that we have to emulate the pro which generally produce 80 to 100 rpm and goes into extreme drive mode of 120 rpm in TT. So if I pedal at 80 rpm and complaining about not getting fast enough, I'd have recieve advise to peddle faster. This is contrary to below article and I sum up as:
We have to mirror our cadence according to our power output. I'm small build and mere mortals and at most generate 150W unlike those pro which goes as high as 400W to 500W. In the article, I was advised to use 60 rpm with my 150W output. Any faster cadence doesn't help and will in fact drain off my energy.
http://www.pponline.co.uk/encyc/cycling-training-can-your-pedalling-technique-make-you-a-more-efficient-rider-42241
Although I use mainly gear 8 and 9, I still have 10 and 11 gear as reserve. When I switch to either 10 or 11, I find its extremely taxing on my leg which I realised I don't have the muscle to peddle faster than my current 80rpm on 8 or 9 gear.
So my question is:
1) Will changing from my current 46T/11T to say 52T/11T much easier on my leg than 46T/9T (which is gear 11)
2)
My cadence 46T/9T is abt 48 rpm. I like to give that article a try to reach a cadence of 60. Hence toying with the ideal of changing the front cog.
Appreciate any good advise instead of simply throwing away good money.