Hey guys,

I am a heavier rider I am in the 250 lb range and am 6 feet tall so I put a lot of pressure on my bike. I am currently riding a Concorde Colombo with Shimano 600 components and Mavic Monte/OEM 190 NE 700 with 23c tires. From when I inherited this bike I noticed the rear wheel had a bit of a warp. I had the rim trued but it always seemed to keep a bit of a wobble. I commute everywhere on my bike, usually doing 100-200 km a week but after 20km or short rides my spokes seem to loosen right off. I reside in Toronto so for people who do not know, our roads may be the worst in North America. I am considering the fact my rim may have too serious a bend so spoke tensioning cant cure it. I am shopping for a new rear rim as of now so does anyone have a fix or rims that can save my vehicle? I am new to the whole cycling community so I only really know Mavic because they're on my bike. I am going to go up to a 25c when I have finished these tires off. Thank you for the help!

Cheers,

Gordie