Hey All,

I have got a serious question regarding cycling.

I had been a good rider during my school / collage days, after 12 years recently I am owner of Frontier Expert (MTB).

During one of my trips around my city which Bangalore, I drove around 85kms(52.8miles). After covering half the distance my thigh muscles became very stressed. Riding got very heavy, I had to struggle to push the pedals.

I have a MTB by any chance will this a reason for Stress and I was comparatively slow too.

Kindly clarify.

Regards,
Akram