After market heated grips.

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adney999
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After market heated grips.

Postby adney999 » Mon Nov 20, 2017 6:04 pm

Hi All,
The chap who owned the 1150rt before me seems to have removed the heated grips. Has anyone ever fitted an after market set but used the standard switch (BMW factor fitted one).

Thanks in advance, Pete.


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Galactic Greyhound
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Re: After market heated grips.

Postby Galactic Greyhound » Mon Nov 20, 2017 6:55 pm

Hi Pete,

Are you sure the BMW Heated Grips have been removed?
The circuit might just be faulty.
Check your User manual for the Heated grips fuse - possibly Fuse 7 (see Fuse Box diagram below).
Here is a typical BMW Heated Grips wiring diagram:

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Heated grips wiring_CM.jpg
1150RTfuse_Relaylayout_singlespark.jpg
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Ced.

R1100RT 1996.
Sent by Boson Quantum Transmission from the Starship 'Galahad'.
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adney999
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Re: After market heated grips.

Postby adney999 » Mon Nov 20, 2017 7:09 pm

Hi Thanks so much for your response, well the grips them selfs (the rubbers) are scrap they even look like they melted a little. The switch looks good and I’ve found a group of 4 thin wires to the front right of the tank, 2 black and 2 Brown. They go to a small block connected and there isn’t anything from that point on.


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Galactic Greyhound
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Re: After market heated grips.

Postby Galactic Greyhound » Mon Nov 20, 2017 7:57 pm

If you have the standard BMW Heated Grips fitted then under each rubber grip is a tube which is wound with heating wire.

The tube has a shellac coating which embeds and protects the wire.

IIRC the tube wire is connected to the harness wiring at the inside end of the tube and then the wires go to a connector.

If you can find the ends of each grip tube wire coil then you can measure the resistance to see if that coil is OK or not - each coil should be around 9 Ohms.

The two heated grip coils coils are connected in parallel so the total resistance seen from the Switch in the 'High' position will be around 4.5 Ohms.

There is a 2 Ohm resistance wire connected to the 'Low' setting of the Switch which reduces the current to both grips so they only get half as hot as the 'Full' setting.

The two Black and two Brown (earth) wires you have found going to a Connector Block sounds like the Heated Grips connector.

Check if each grip has a 9 Ohm resistance.
If so, the grips are OK and you only need new rubbers and the wiring sorted out - see the wiring diagram.
Ced.

R1100RT 1996.
Sent by Boson Quantum Transmission from the Starship 'Galahad'.
http://www.researchgate.net/publication ... ing_bosons" onclick="window.open(this.href);return false; - It works!

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Galactic Greyhound
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Re: After market heated grips.

Postby Galactic Greyhound » Tue Nov 21, 2017 10:44 am

Ced.

R1100RT 1996.
Sent by Boson Quantum Transmission from the Starship 'Galahad'.
http://www.researchgate.net/publication ... ing_bosons" onclick="window.open(this.href);return false; - It works!

adney999
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Re: After market heated grips.

Postby adney999 » Wed Nov 22, 2017 12:47 pm

Thanks, I’m afraid it’s bad, it’s been butchered all the shell removed, thin heater elements cut out, no wire in bars and no power at the block connector. And no wiring past the block connector. If I have to fit after market can I still use the factor switch. Sorry bit like asking how long is a piece of string isn’t it.

Pete.


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bwprice100
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Re: After market heated grips.

Postby bwprice100 » Wed Nov 22, 2017 2:18 pm

Can you get a set of good used ones from motorworks?

Brian

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adney999
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Re: After market heated grips.

Postby adney999 » Wed Nov 22, 2017 2:21 pm

I can yes not to bad price actually, but I’m worried about where the wires go once they pass the small block on the right as it’s all been removed. Why would anyone do that.

Pete.


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bwprice100
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Re: RE: Re: After market heated grips.

Postby bwprice100 » Wed Nov 22, 2017 2:25 pm

I can yes not to bad price actually, but I’m worried about where the wires go once they pass the small block on the right as it’s all been removed. Why would anyone do that.

Pete.


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The wiring is simple and you could buy the whole thing, including the connectors.

The fiddly bit is feeding the wires down the handle bars but again not too difficult and IMHO worth the effort.

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1958 R26, (not so many bits now)
1978 R75/7, (a project bike)
1981 R80, (was a TIC)
1995 R1100RT, (speeding ticket the first day I rode it) (Sold)
http://www.eBolt.co.uk
http://www.ToolroomChucks.co.uk

adney999
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Posts: 9
Joined: Sun Oct 16, 2016 8:26 pm
Country of Residence: United Kingdom

Re: After market heated grips.

Postby adney999 » Wed Nov 22, 2017 2:28 pm

Thanks I will get my head around that diagram and order the kit. Don’t go anywhere mate. Lol.


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Galactic Greyhound
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Re: After market heated grips.

Postby Galactic Greyhound » Wed Nov 22, 2017 2:38 pm

Hi Pete,

You may be able to use the existing Heated Grips switch with aftermarket grips depending on the setup with the aftermarket grips which will
likely come with their own switch/controller anyway.

I would do as Brian has suggested and get a pair of used grips and the appropriate cable harness from Motorworks or James Sherlock to get your bike back to standard.

The original grips are quite effective and reliable.

The wiring diagram posted shows how it is all connected up.
Note that the 'Low' switch setting connects to a resistance wire in the harness to reduce the current (and so the heat) flowing in the grips.

It's pretty straight forward to connect up - the hardest part is getting the grip wiring through the bars.

A Haynes/Clymer Manual will likely help and always be useful for other work - Santa?
Ced.

R1100RT 1996.
Sent by Boson Quantum Transmission from the Starship 'Galahad'.
http://www.researchgate.net/publication ... ing_bosons" onclick="window.open(this.href);return false; - It works!


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