For several years I had a seat post rack. I put it on a Cannondale road bike to help carry stuff and it seemed like the perfect solution because the bike was not designed for a "normal" rear rack. I used the rack for about five years and one day while riding home the rack busted. It cracked near where it attached to the seat post, I assume the victim of vibration over the years. I suppose I could have overtaxed the thing, I do not remember if there was a recommended weight load.
I was actually lucky when it broke off because it bounced off my rear tire and went behind me. It could have ended up in my spokes, or could have caused trouble if a rider had been behind me.
Seat post racks are appealing, but when I saw this hack I was not quite as excited about the idea as I would have been if I had not had my rack break on me.
This is a clever idea, I just hope that 1) the passenger is light 2) the post has a heavy duty weld.
Besides the post of the rack, I'd worry about the seat post itself.
The Delta Universal Mega Rack attaches to the seat stays and the seat post...it works for bikes that aren't lugged for racks. It would work for this seat idea too.
Posted by: Rick | 08/28/2012 at 07:21 AM
This just doesn't look like it will have a happy ending.
Posted by: John h | 08/28/2012 at 08:39 PM
Except for the fact that those racks are generally only rated for 20 lbs.
Posted by: Raiyn | 08/29/2012 at 11:48 PM
Would never trust this. ever.
Posted by: Travis | 09/03/2012 at 05:16 PM