I have just started cycling so i need to buy a stock bike for a start. Currently I am looking at Kona Fire Mountain. But, i need some recommendation before going to the bike shop. (although some force suggest bike shop staff helping me but i knew nuts bout bike and worried the staff force give incorrect recommend as they want to push for sale). So the answer here will help me and guide me. Thanks alot to those answer.
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Hey,
There are many more factors to consider. Commonly, the frame size is more based on the inseam of the leg.
Many shops even use formulae for this.
a road bike would fit 0.67 x inseam (cm)
A mountain bike would be 11-12 cm less than this.
There is a lot more to frame fitting nowadays, since of all the unique geometries, so it is absolutely BEST to get fitted in a bike shop based on the rest of your body and riding style too.
I recently came across this GREAT CALCULATOR that gives genteel fit for a variety of different style bikes by entering your inseam measurement.
http://www.mtbsa.co.za/Technical/framesize.htm
excellent luck
Forget the numbers and tech talk jargon – it’s just a bike, most master the abiltiy to ride one by the age of eight or ten!
Straddle the bike, must be able to comfortably straddle with both feet flat on the ground with out the top tube touching your crutch.
Ride the bike – can you comfortable “dance” around the frame.
ie can you get off the back – feet on pedals hands on bars, butt in the air – belly/chest above the saddle. if no – maybe you want a bit less length. Can you place your butt on the nose of the saddle and spin your legs lacking hitting your arms or bars when you turn – if no – maybe you want a bit more length.
Once you have the height and length sorted – there really isn’t anything else to worry about.
Gary Fisher at fisher bikes is the only guy playing with geometries – 99% of double diamond MTBs share pretty much the same geometries. They may be made of different materials and have different shaped top-tubes and down-tubes but the head tube angles are all the same. Its all the same bike!
Buy the one you reflect looks the best and go ride
PS: You could buy a much worse bike than a Kona firemountain – that’s a sweet rig.