Anyone ever made a grab rail?

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Le_Fromage_Grande
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Re: Anyone ever made a grab rail?

Post by Le_Fromage_Grande »

A_morti wrote: Thu Nov 17, 2022 11:06 am Depends what your passenger prefers, but IME the aftermarket "hoop behind the back" type of grab rail is so uncomfortable to use as to be basically worthless.

How about getting something off another bike and mashing up some brackets? I've been told before that these off a Divvy are pretty "handy" due to the rubberised coating, for example. If you can find somewhere to put them, they're pretty integrated to the fairing.
https://www.ebay.co.uk/itm/225130379732

Sure there would be less ugly and more adaptable options off more-recent bikes. Go obscure, and you'll also get cheap.
https://www.ebay.co.uk/itm/185459767939
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I don't know what shape is best, I suspect the last bike I went on the back was an LC in the 80s, so I've no idea what works best.
I only want one for occasional use by my daughter next summer and my wife used to say that the Renntec ones were uncomfortable to use when I had them on GSXRs 25 - 30 years ago.
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Re: Anyone ever made a grab rail?

Post by mangocrazy »

Not sure if this has been suggested, but have you thought about a Givi rack for your bike? I realise this takes you firmly into the realm of Topbox Terrys, but from what my pillion passengers have said, the mounting hardware that Givi use can make for a useful grabrail. Alternatively look at the fixing points on the subframe that the various manufacturers use and try to adapt their creations to your needs.
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Re: Anyone ever made a grab rail?

Post by mangocrazy »

This is VD's stab at fitting a Givi rack to a GSX S750...


https://www.visordown.com/reviews/produ ... i-gsx-s750


It might (if nothing else) provide some ideas on how a home-brewed grab rail might fit to the bike.
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Re: Anyone ever made a grab rail?

Post by KungFooBob »

Get some of those 'love handles' that you strap around your waist or those handles that attached to the fuel cap.
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Re: Anyone ever made a grab rail?

Post by Le_Fromage_Grande »

KungFooBob wrote: Thu Nov 17, 2022 11:31 am Get some of those 'love handles' that you strap around your waist or those handles that attached to the fuel cap.
That could be a bit up close and personal for me and my daughter
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Re: Anyone ever made a grab rail?

Post by A_morti »

mangocrazy wrote: Thu Nov 17, 2022 11:29 am This is VD's stab at fitting a Givi rack to a GSX S750...
https://www.visordown.com/reviews/produ ... i-gsx-s750
Those four bolts they used would give you somewhere solid to make a bracket for those handles I've linked above.

@Le_Fromage_Grande I pick up my little girl (7 years old) from school most days on my CB300R, and we go out on a weekend sometimes. It has some handles which she uses, but for her the big thing to make it feel safer was a top box with a back cushion. That thing @Taipan linked above would do it, but I think a topbox might actually look less bad, and would also give you somewhere to lock your/her helmets when you get off at wherever you're going.

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Last edited by A_morti on Thu Nov 17, 2022 11:42 am, edited 1 time in total.
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Re: Anyone ever made a grab rail?

Post by KungFooBob »

The idea of the handles that strap to you is you don't have to get too close and put arms fully round you.

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Re: Anyone ever made a grab rail?

Post by Le_Fromage_Grande »

I've got this https://www.shad.es/descargas/shad8319.pdf already, so the grab rail would go to the bracket that goes under the seat
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Re: Anyone ever made a grab rail?

Post by mangocrazy »

Given that Triumph (in the picture above) provide decent looking grab handles on the bike, I'd be happier if a pillion used them rather than regulating my waist size randomly.
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Re: Anyone ever made a grab rail?

Post by A_morti »

Like I've done above, see if you can get her sat on the bike, see where her hands naturally fall. Might give you a guide of where to mount off, etc.

Apologies for keep editing posts, I'm not used to threads keep updating anymore :D
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Re: Anyone ever made a grab rail?

Post by Skub »

In the 70s I made one out of copper pipe and had it chromed. Chrome takes well to copper.

It was stronger than you'd think.
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Re: Anyone ever made a grab rail?

Post by Rockburner »

Le_Fromage_Grande wrote: Thu Nov 17, 2022 11:37 am
KungFooBob wrote: Thu Nov 17, 2022 11:31 am Get some of those 'love handles' that you strap around your waist or those handles that attached to the fuel cap.
That could be a bit up close and personal for me and my daughter
They're not actually - and they're easier to use for inexperienced pillions.
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Re: Anyone ever made a grab rail?

Post by Rockburner »

mangocrazy wrote: Thu Nov 17, 2022 11:44 am Given that Triumph (in the picture above) provide decent looking grab handles on the bike, I'd be happier if a pillion used them rather than regulating my waist size randomly.
I've used the pillion-pal (I've still got it somewhere) with my new GF, until she got used to being on the back - you don't notice the belt at all once you're moving ..... well - unless you're so ham-fisted that the pillion is being thrown around, and if you're riding that badly, they're not going to want a second go.
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Re: Anyone ever made a grab rail?

Post by dern »

Used the pillion pal for my daughter and it worked well without being in any way weird.

Alternatively you could buy the renntec and then chop/weld it in to the shape you want.
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Re: Anyone ever made a grab rail?

Post by mangocrazy »

As I've never used a 'pillion-pal' I'll take people's word for the fact that you don't notice it in use, but I can't see how it would be as effective in use as a properly designed grab rail. If a grab rail is designed properly it allows the pillion to brace themselves against forward and back movements; the pillion-pal only works for backwards (accellerative) movements - I can't see how it would work if the rider had to brake suddenly.

But if it's useful as a training aid for rookie pillions then that has to be a good thing.
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Re: Anyone ever made a grab rail?

Post by Horse »

Rockburner wrote: Thu Nov 17, 2022 9:51 am I daresay the material itself (the steel) will be a certain quality (the minimum that Renntec can get away with no doubt)
Is there any point (assuming higher quality = higher cost) from doing anything more?
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Re: Anyone ever made a grab rail?

Post by Rockburner »

Horse wrote: Thu Nov 17, 2022 12:26 pm
Rockburner wrote: Thu Nov 17, 2022 9:51 am I daresay the material itself (the steel) will be a certain quality (the minimum that Renntec can get away with no doubt)
Is there any point (assuming higher quality = higher cost) from doing anything more?
Depends on how safe/strong you want the thing to be.
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Re: Anyone ever made a grab rail?

Post by A_morti »

Rockburner wrote: Thu Nov 17, 2022 12:42 pm Depends on how safe/strong you want the thing to be.
Strong enough to never get sued by someone who was using it as intended.
That's not the same thing as "strong enough to lift the bike by".
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Re: Anyone ever made a grab rail?

Post by mangocrazy »

If you take manufacturer's specification as a starting point, then that should be the minimum 'quality' level. If you want a larger safety margin go up on the wall thickness/dimension of tube/bar or use steel of the same size instead of aluminium. Either way the cost of raw materials probably won't be the major cost item. Getting the parts welded/plated/powder coated will probably be the main cost component.
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Re: Anyone ever made a grab rail?

Post by Horse »

Rockburner wrote: Thu Nov 17, 2022 12:42 pm
Horse wrote: Thu Nov 17, 2022 12:26 pm
Rockburner wrote: Thu Nov 17, 2022 9:51 am I daresay the material itself (the steel) will be a certain quality (the minimum that Renntec can get away with no doubt)
Is there any point (assuming higher quality = higher cost) from doing anything more?
Depends on how safe/strong you want the thing to be.
i.e. the minimum needed?

Potentially it could be thicker-walled tube, wax-filled, anti-rust coated (or stainless). At higher cost. But is any of that actually required?

How strong does it need to be to qualify as 'safe' or 'safer'?

If you compare that with things like Priest's plastic fuel pipe connectors, aging and breaking ...
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