I weigh 280 lbs and ride a Diamondback Wildwood bike. I have two problems with an after market softer gel seat I put on my bike.
1) The seat can only be adjusted up and down with the seat stem, but can not tilt upward or downward. When I ride I feel like I am sliding forward and have to adjust how I am sitting because it feels like I slowly slide forward on the seat. Is it how my seat is tilted, or do I need to adjust something else on the bike, like raise my handlebars or something?
2) Also I have the quick release adjuster to lock in how high my seat is. I set it so that it's a the perfect height for me, but my seat very slowly seems to slide down and about a mile into my ride the seat is at a height where it's too low to ride comfortable. Would my seat slowly go down because of my 280 lbs, or would it be my quick release lock on my bike where the seat stem is?