BMW R100RS cafe build thread
BMW R100RS cafe build thread
Author
Discussion

Jake899

Original Poster:

584 posts

74 months

Friday 28th August 2020
quotequote all
Evening all.
I’ve always liked bikes, even owned a Kawasaki KX and a Honda CX but never got a license.
After a move to Finland a few years back there was a worry that Brexit would mean my car license would be invalid and I’d have to take my driving test again. To head off this obviously embarrassing tragedy I swapped my license over for a Finnish one. When it turned up, there was a motorcycle category included! Thanks Brexit, you saved me a bundle!
So the plan this summer was to buy a lancia from Italy and drive it back to Finland but you-know-what put the scuppers on that idea.
So what better decision for a petrol head than to make 2020 the year Jake gets a bike?
I found a nice old boxer about four hours from me, bought it, and taught myself how to ride on the way home!
The bike is a 79 100RS, in nice shape but needing some love. These make a great base for a cafe project and in Finland 98% of bikes are weekend Harley office boys so here’s a chance to do something different.

Jake899

Original Poster:

584 posts

74 months

Friday 28th August 2020
quotequote all
As is usual with these things I forgot to take a pic before I started but this is stock:

And this is where we are thus far:


Just thrown back together. It’ll be fully stripped painted and rebuilt over winter

zzrman

670 posts

219 months

Friday 28th August 2020
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I hink you may have got those photos the wrong way round...............................

rodericb

8,907 posts

156 months

Friday 28th August 2020
quotequote all
zzrman said:
I hink you may have got those photos the wrong way round...............................
Yowzers I hope not.......

anonymous-user

84 months

Friday 28th August 2020
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Those unsupported solid brake lines sitting in front of the engine need brackets to support, surely?

underwhelmist

2,052 posts

164 months

Friday 28th August 2020
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It's your bike OP and you do you, but if it was mine I'd restore the RS to as good a standard as possible, it's a great looking classic bike. I think they're getting rare now because people keep converting them to cafe...oh.

hiccy18

4,190 posts

97 months

Saturday 29th August 2020
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underwhelmist said:
It's your bike OP and you do you, but if it was mine I'd restore the RS to as good a standard as possible, it's a great looking classic bike. I think they're getting rare now because people keep converting them to cafe...oh.
yes

Lovely seeing an old boxer anyway, thx op smile

kev b

2,756 posts

196 months

Saturday 29th August 2020
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I love custom bikes but I would keep that stock.

black-k1

12,807 posts

259 months

Saturday 29th August 2020
quotequote all
underwhelmist said:
It's your bike OP and you do you, but if it was mine I'd restore the RS to as good a standard as possible, it's a great looking classic bike. I think they're getting rare now because people keep converting them to cafe...oh.
I couldn't agree more.

srob

12,542 posts

268 months

Saturday 29th August 2020
quotequote all
Those RS’ are very desirable in standard condition. I called up about one but I was about seventh in line if the bloke who was on his way with cash didn’t have it!

Jake899

Original Poster:

584 posts

74 months

Sunday 30th August 2020
quotequote all
Many very correct comments, and i kind of shot myself in the foot by posting that immaculate RS as an example of stock.
Mine however, was of course no where near that nice, dropped, broken fairings and high miles meant that it would cost as much if not more to make it factory as it would to make it in my image. However, i am on the lookout for an original model to conserve, if an air cooled GS doesnt come along first!
Cafes are almost unheard of in Finland, and as an ex pat Brit, i consider it my duty to bring a little of our heritage and biking culture and spread it around a little. Plus i just enjoy the bonding experience of building a bike yourself and the joy that brings. More pics to follow. Thanks for your responses and opinions.

Pat H

8,058 posts

286 months

Friday 2nd October 2020
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I inherited this 1981 R100S from my uncle.

It was a bit scruffy, so I have had the wheels and the sub-frame powder coated and had the tank painted.

It's pretty much standard, apart from progressive fork springs, Goodridge hoses, K75RS bars and a stainless straight through exhaust.

Never seen another with the daft ears on the fairing. Makes it look like Mickey Mouse, but they keep out the draft.

For a 40 year old it is a surprisingly competent tourer.

These things used to be everywhere, but these days you don't seem to see them about much.







lukeyman

1,101 posts

165 months

Friday 2nd October 2020
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^ Love it. Even the ears!

black-k1

12,807 posts

259 months

Friday 2nd October 2020
quotequote all
Pat H said:
I inherited this 1981 R100S from my uncle.

It was a bit scruffy, so I have had the wheels and the sub-frame powder coated and had the tank painted.

It's pretty much standard, apart from progressive fork springs, Goodridge hoses, K75RS bars and a stainless straight through exhaust.

Never seen another with the daft ears on the fairing. Makes it look like Mickey Mouse, but they keep out the draft.

For a 40 year old it is a surprisingly competent tourer.

These things used to be everywhere, but these days you don't seem to see them about much.




That looks great although, [nerd-mode] as it has the flat air filter rather than the round one, I think it should be a CS, not an S [/nerd-mode]

The "ears" are non-standard add ons.

Pat H

8,058 posts

286 months

Friday 2nd October 2020
quotequote all
black-k1 said:
That looks great although, [nerd-mode] as it has the flat air filter rather than the round one, I think it should be a CS, not an S [/nerd-mode]

The "ears" are non-standard add ons.
Yep.

I think the V5 actually says R100/7, but in any event the bike started life as a plain jane R100.

The cockpit fairing was a later addition.


black-k1

12,807 posts

259 months

Friday 2nd October 2020
quotequote all
Pat H said:
black-k1 said:
That looks great although, [nerd-mode] as it has the flat air filter rather than the round one, I think it should be a CS, not an S [/nerd-mode]

The "ears" are non-standard add ons.
Yep.

I think the V5 actually says R100/7, but in any event the bike started life as a plain jane R100.

The cockpit fairing was a later addition.
biggrin [nerd-mode] with the flat air filter it should be a R100T rather than a R100/7 but 1981 was the year they changed from the round air filters (as fitted to the OPs bike) to the flat air filters, and from one set of model designations to another, so the DVLA database may have been a little behind. [/nerd-mode]

With the flat air filter it'll be the 70bhp engine. While not a huge amount against today's numbers, the torque makes it a very usable road bike. It should happily keep up with all traffic and can cover the ground, especially on long runs, at a pace many modern bikes would be jealous of.


Pat H

8,058 posts

286 months

Thursday 8th October 2020
quotequote all
black-k1 said:
biggrin [nerd-mode] with the flat air filter it should be a R100T rather than a R100/7 but 1981 was the year they changed from the round air filters (as fitted to the OPs bike) to the flat air filters, and from one set of model designations to another, so the DVLA database may have been a little behind. [/nerd-mode]
The DVLA database was more than a little behind. The bike wasn't registered until 1983 and they still managed to cock it up.

I suspect Doug Hacking was just having an off day when he sent the V55 to Swansea.

smile