140mm fork for trek 4300 ht

Currently have the RST capa 80mm on my trek 4300. This has no movement on it any more and I would like to upgrade it to something smoother.
http://www.rst.com.tw/ct/product/produc ... 9546362647
Rode coed y brenin MBR on Saturday and really noticed how harsh it was.
I am out of touch and unclear what will be
1. A compatible replacement
2. A good vfm upgrade ( under 200 quid - new or used fork)
My research seems to be saying suntour epicon or rockshox Tora ?
Thanks
http://www.rst.com.tw/ct/product/produc ... 9546362647
Rode coed y brenin MBR on Saturday and really noticed how harsh it was.
I am out of touch and unclear what will be
1. A compatible replacement
2. A good vfm upgrade ( under 200 quid - new or used fork)
My research seems to be saying suntour epicon or rockshox Tora ?
Thanks
0
Posts
http://www.merlincycles.co.uk/Bike+Shop ... L-2012.htm
Buying used can be a false economy if the first thing you have to do is service them, which will cost you £80-100 unless you can do it yourself.
Stretching & Workout Vids
£200 really is my limit as spending more would be a good chunk towards saving up for a full sus bike and leaving the existing fork on.
would any of the ones mentioned be fine to move onto my frame? in terms of sizing, steerer etc? I would be guessing on these aspects and don't want to buy something not compatible.
thanks
http://www.on-one.co.uk/i/q/FORSRERL-BL ... qr___1_1_8
Or Recons
http://www.on-one.co.uk/i/q/FORSRECGLDA ... th_poplock
They are not Motion Control though - blurb is wrong.
Going from 80 to 140mm will kill your frame, and probably you. Stick to 100mm.
There is no secret ingredient - Kung Fu Panda
London Calling on Facebook
Parktools
2013 Cannondale Jekyll 3
2007 Carrera Kraken
To give you a comparison, my first mtb had 80mm cheap coil forks, I upgraded them to Solo air Tora's and the bike was completely different. As different as my first experience going from ht to full sus. Forks make a big difference to a bike and as cool dad says anything over 120mm (and probably 100mm) will destroy your bikes geometry and could well cause the frame to fail.
Stretching & Workout Vids
There is no secret ingredient - Kung Fu Panda
London Calling on Facebook
Parktools