[Closed] Hamax child seat and seat tube mounting - anybody damaged their bike?

Got one on my ancient rusty inbred and one on my gfs giant alu hybrid thing. No issues on either.

[quote=solarider ]Has anybody used one? Am I worrying unnecessarily?

Yes, yes.

Had one on a variety of thin walled very lightweight alu frames without any problem. Wouldn't use one on a carbon frame, but that's about it.

Had one on my old Curtis S1 a few times without a problem.

Mrs natrix and myself both had one on our aluminium framed bikes, no damage at all. 😀

Ive used one on a Aluminium Spesh Cirrus for years. No issues with that at all.

I made sure that my seat post was long enough to be inserted below the clamp to support the seat tube from the inside. No damage to an Inbred.

What you putting it on?
Most mentioned here have down tubes hewn from scaffolding. Designed for commuting/training abuse. Or are being deliberately coy about exactly what was used.

And the last two thin walled aluminum bikes i had, both strongly advised against (warranty void) even clamping in a work stand. So waggling 2 stone of baby/seat off the back of a 1 ish kilo aluminum frame would probably have not ended well! Frame only lasted a year under me.

Had one attached to an alu Genesis Core and an On One 456 with no issues - but both of these are pretty burly frames.

One thing, though - don't forget it is there and stand up to pedal, the side to side slosh is alarming!

It's a Moots titanium cyclocross.

Would hate to wreck it, but its is the most appropriate bike for the job. The alternatives are thin walled steel (Cielo) or Carbon (Cervelo). The rest are all titanium, but road bikes and I want to be able to take him on canal towpaths.

[quote=ghostlymachine ]Most mentioned here have down tubes hewn from scaffolding. Designed for commuting/training abuse. Or are being deliberately coy about exactly what was used.

I didn't specify mine, but didn't think it would add anything rather than being coy. Has been on a Cannondale tandem and a Dyna-Tech Metal Matrix MTB (very old, but what Barrie Clarke et al were racing on in the early 90s) - neither of which have scaffold tubes.

I just made sure with ours that there was enough post in the frame to help against any crimping issues where the clamp clamped the ST.

We used ours for about 18months with no issue, slippage or otherwise.

Moots titanium cyclocross.

I feared you would say that! I would be inclined to get a cheaper runaround for the purposes, basic pinnacle or something. You can then just leave the bracket on. There's the seat tube issue but also as your little un gets older if you're stopping at the pond to feed the ducks, stopping at a cafe etc then in my experience it's hard to be as careful with the bike as you would like when you're trying to stop a 2 year old running off.

Given it is custom couldn't you ask moots?

Orange p7 and a Raleigh something or other for 2 1/2 years no issues. one mount and each frame so we could easily swop between us.

A moots ti CX frame is *probably* using a fairly lightweight road tubeset

I'd not stick a kiddy seat on a lightweight road bike.........

"Would hate to wreck it, but its is the most appropriate bike for the job."

Bit like saying my 911 is the best tool for taking round tong becausits a quarter inch higher than the gallardo really...

Ha ha. Didn't mean to sound like a t#*t!

Well, I don't have a 's*#tter' bike, and since my wife only has a CX bike and we want to ride as a family, it is the most appropriate.

If it were me I'd get something cheapish made of gas tubing to bolt it to with flat bars and discs.

Speaking from experience as they get heavier and bigger wide flat bars combined with discs becomes a massive benefit.

In contrast, none of the bikes I've used one on had discs, and mostly it was used on one with drop bars. Neither me nor the occupant of the kiddy seat died.

My favourite kiddy seat pic (for the content - shame about the focus)
[IMG] [/IMG]

The same bike and contents - as always you can't tell the gradient in pics, but those are steps to the side of us - sadly you can't see the big grins on the kids' faces either:
[IMG] [/IMG]

edit: and I'd clearly forgotten that the seat tube not only had the Humax mount, but it also had (still has) the kiddy crank bracket!

Fair play. I'm clearly a wuss!

I've currently got my hamax bolted to a 93 orange clockwork single speed. Not the best on a ss. Thought about bolting it to my wife's mtb but top tube mounted cables stop that. I saw on here that cotic had advised against it on an escapade and I didn't fancy it on my 853 genesis latitude ( as it might rub off the sticker!) just in case. I'm prob being a wuss but was gonna put some gears back on the clockwork.

[quote=burko73 ]Thought about bolting it to my wife's mtb but top tube mounted cables stop that.

? Top tube cables on mrs aracer's bike, but just had to make a slightly longer bit of outer for the front gear cable to route it around the bracket - not sure why else TT cables would be a problem.