it's mounted pretty much to the middle. The first time that it bent it was more to the rear. After straightening it I remounted the seat more towards the middle. The bending this time was more to the front. I'm afraid that I can't bend this seat back again as it looks like a crack has begun to form in one of the rails. I've ordered a WTB saddle. Hope that this one is more robust. I'll let you know how it goes.