well u r pedaling like 90 cms more using 49x14 than using 49x16... and u just got down less than a second?? I mean... dont take me wrong ok? but think in this one... U just add like 2.5 feets more by revolution in your pedals tight? well if u think that u just keep the same ammount of revolutions U just have get 10 or 12 secs in 200 meters... not less than a second as u did ... u didnt improve not even a second... I think u have to meditate about this and think what was wrong and why u practically didnt improve at all putting more juice to your bike... by the opposite u just did it worse.

The answer is that u r very slow and u need to get more power and as an advice, do not get that (power) using heavy gears Because ull make the situation even worse. Not even in my peack of my carrer as a tracker I put 49x14, not even think about it, maybe in the road but in a track?? and at the beggining of the season********** who is teaching u dude??? Track training is super simple, pure and u have to be very carefull because u can screw up big time your improvements if u do stuff such a put those heavy gears... but is your problem not mine... if u continue using such a heavy gears like that even a turtle with 2 legs tied could win u an sprint easily.. Even I can do it with 40 pounds everweight...

When i was 15 y/o i was doing under 13 secs in 200 meters using 50x16 at the end of the season. And when I was junior (17) i was doing 11 secs using 50x15 in a concrete 45 degress track. When I was cat-1 I was doing under 10 secs and i wasnt the best sprinter... maybe many of u dont know but in a sprinter race if the racer sprint or launch the attack before the 200 meters line u end up doing like 9 secs... and usually u get 10 / 11 secs basically sprinting the last 150 meters, so imagine the power and speed u have to have to do that...

Well my advice is continue riding with 49x16 and race using 49x15 notihng more than that... well cya around...