BMW K bikes (Bricks)


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JaseYPK

JaseYPK
Silver member
Silver member
Hey guys, as some are aware I'm doing my own "cafe" type build and as such need a few answers before i do something that'll fail an mot. 

I'm making my own rear seat and want clarification if it has to cover a certain proportion of the rear tyre or not. For example does it have to cover the highest centre point, or are there no rules. And similarly does a rule/law exist on rear mudguards/Huggers?

Finally what's the law on the position of the number plate? I know it's got to be a set size and be vertical (ish), but can it be tucked under the seat, quite far forward... Or does it have to be the rearmost point?

Thanks guys. Need some answers before I make the seat!

Cheers


__________________________________________________
1984 K100 RS - The Project!
    

Dai

Dai
Life time member
Life time member
It's all in here...

http://www.legislation.gov.uk/uksi/1986/1078/contents/made

...but you might have to search a bit for the motorcycle bits.


__________________________________________________
1983 K100 naked upgraded to K100LT spec after spending time as an RS and an RT
1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500
    

Englishstiv

Englishstiv
active member
active member
Well I am due to have mine mot'd next week after altering the rear frame and rear lights plus the angle of the No plate and removing front mudguard and shortening the exhaust and full removal of one internal baffle section albeit replacing it with stainless steel wool etc.

So I popped down to my regular man and clarified a few issues. He is for want of better word well up on everything but using a non fully computerised MOT system as this does effect how he can progress through the test and how he inputs answers.

The lights are fine as long as the relevant bulb lighting can be seen - ie enclosed rear lights with indicators. I am also using an LED brake light separated from the rear  ride lights similar to one of those seen on the centre of rear vehicle windows.

The rear number plate can be angled to the point where the letters can still be clearly seen from standing to the rear as per the normal site test after that you are in the hands of the blind plod driving behind you or at a roadside check etc.

My rear lights are tucked under the rear seat base and can be seen to the rear and at an angle to the left and right but not the side and this should be okay.

No issue on a rear guard although as he said it will save an awful lot cleaning to have one.

Front guard not required but he wished me luck keeping my visor clean in the rain.


Exhaust is not an issue as long as I have not altered any specification stamps but as I have wrapped it in heat wrap it wont even be a discussed.

His main issues where that as long as the bike retains it's road worthiness and could be ridden on the road correctly it should be okay to test .... I'll let you know how I got on next weekend   ... hopefully?

    

JaseYPK

JaseYPK
Silver member
Silver member
Englishstiv wrote:Well I am due to have mine mot'd next week after altering the rear frame and rear lights plus the angle of the No plate and removing front mudguard and shortening the exhaust and full removal of one internal baffle section albeit replacing it with stainless steel wool etc.

So I popped down to my regular man and clarified a few issues. He is for want of better word well up on everything but using a non fully computerised MOT system as this does effect how he can progress through the test and how he inputs answers.

The lights are fine as long as the relevant bulb lighting can be seen - ie enclosed rear lights with indicators. I am also using an LED brake light separated from the rear  ride lights similar to one of those seen on the centre of rear vehicle windows.

The rear number plate can be angled to the point where the letters can still be clearly seen from standing to the rear as per the normal site test after that you are in the hands of the blind plod driving behind you or at a roadside check etc.

My rear lights are tucked under the rear seat base and can be seen to the rear and at an angle to the left and right but not the side and this should be okay.

No issue on a rear guard although as he said it will save an awful lot cleaning to have one.

Front guard not required but he wished me luck keeping my visor clean in the rain.


Exhaust is not an issue as long as I have not altered any specification stamps but as I have wrapped it in heat wrap it wont even be a discussed.

His main issues where that as long as the bike retains it's road worthiness and could be ridden on the road correctly it should be okay to test .... I'll let you know how I got on next weekend   ... hopefully?
Thanks for that, really cleared a few things up! Is your frame significantly chopped at the rear? As mine is going to be about a foot shorter (where the horizontal cross section is, behind the original ECU holding area)

Cheers


__________________________________________________
1984 K100 RS - The Project!
    

sidecar paul

sidecar paul
Life time member
Life time member
Rear mudguards seem to be a thing of the past.........judging from modern manufacturers.  affraid

Paul.


__________________________________________________
'84 K100RS (0014643) (owned since '85), 86 K100RS (0018891) with Martello sidecar (built as an outfit in '88),
'51 Vincent (since '67),'72 Montesa Cota (from new), '87 Honda RS125R NF4 (bought 2015) 
....No CARS never ever!
    

Englishstiv

Englishstiv
active member
active member
Mine is chopped about an inch from that bracket too, I shaved off all the non necessary metal and trimmed off the seat lock as well, re-using the end loop to re strengthen and lift the wide line seat base I am using. 

    

Dai

Dai
Life time member
Life time member
sidecar paul wrote:Rear mudguards seem to be a thing of the past.........judging from modern manufacturers.  affraid

Paul.
Am I the only one that actually extends mine to keep the crap off a) the oil/water pump and b) the pillion passenger?


__________________________________________________
1983 K100 naked upgraded to K100LT spec after spending time as an RS and an RT
1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500
    

indian036

indian036
Life time member
Life time member
Dai wrote:Am I the only one that actually extends mine to keep the crap off a) the oil/water pump and b) the pillion passenger?
An alternative would be to move to Australia, where it doesn't rain as often   Razz

Bill


__________________________________________________
1985 K100RT  VIN 0028991  My original Very Happy ROB the Red Old Bike   (Historic rego)
1985 K100RT  VIN 0029036  BOB the Blue Old Bike  (Historic rego)
1990 K100LT  VIN 0190452  Work in progress
1984 K100RT  VIN 0023022  Work needing lots of progress

1986 K100RT  VIN 0090542  Work needing lots and lots of progress
1993 K1100LT  VIN 0183046  Work in progress
1993 K75S  VIN 0213045  Tom the Triple (now on Historic rego too.)
    

JaseYPK

JaseYPK
Silver member
Silver member
Dai wrote:
sidecar paul wrote:Rear mudguards seem to be a thing of the past.........judging from modern manufacturers.  affraid

Paul.
Am I the only one that actually extends mine to keep the crap off a) the oil/water pump and b) the pillion passenger?
I'm gonna create a sort of barrier behind those parts, and as for pillions - my Mrs is a super bike girl, won't go near the K! Haha Sad so I'm looking for an MV Agusta F3/4 next year :p

So the K is my fun solo rider Smile


__________________________________________________
1984 K100 RS - The Project!
    

robmack

robmack
Life time member
Life time member
Dai wrote:Am I the only one that actually extends mine to keep the crap off a) the oil/water pump and b) the pillion passenger?
No, you're not alone.  I left my rear fender long because it fit the style I was after.


__________________________________________________
Robert
1987 K75 @k75retro.blogspot.ca
http://k75retro.blogspot.ca/
    

sidecar paul

sidecar paul
Life time member
Life time member
I've even added a Suzuki hugger to my outfit. 

UK Legalities - tyres, mudguards, number plates. Ssl10710

This is an old picture, before I painted the swing arm and bevel box black.

Paul.


__________________________________________________
'84 K100RS (0014643) (owned since '85), 86 K100RS (0018891) with Martello sidecar (built as an outfit in '88),
'51 Vincent (since '67),'72 Montesa Cota (from new), '87 Honda RS125R NF4 (bought 2015) 
....No CARS never ever!
    

92KK 84WW Olaf

avatar
Life time member
Life time member
Paul

I live on a rural road and the mud is bad, have been looking at doing something like that. What model Suzuki and were there any issues fitting it?

Olaf.


__________________________________________________
1992 K100LT 0193214 Bertha Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 106,950 miles Deceased.
1983 K100RS 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 51,800 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 63,390 miles

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

Dai

Dai
Life time member
Life time member
I'm not Paul (at least, I don't think I am!) but I do have a hugger fitted to my twelve-year-old 600 Bandit. It's held on with two bolts to existing swingarm threads, was fitted from new and I can't praise it highly enough. Bandits usually rot around the sub-frame/swingarm area and the rear shock dies for a pastime. I don't have either of those problems because the hugger keeps the crap off both areas.

I'd guess the big advantage of fitting a hugger to a K would be protecting the clutch arm and GPI switch.


__________________________________________________
1983 K100 naked upgraded to K100LT spec after spending time as an RS and an RT
1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500
    

BIG D

BIG D
Life time member
Life time member
sidecar paul wrote:Rear mudguards seem to be a thing of the past.........judging from modern manufacturers.  affraid

Paul.

Cool

You are right there Paul, they will probably go the same way as centre stands and other parts and offered as optional extras.   Laughing



BIG D

    

Englishstiv

Englishstiv
active member
active member
Wow .... I would just take some time and see what Insurance quotes you get before you pull down the bike and change it as I have had to go through all sorts of hoops to get mine sorted today as no one would quote without a lot of explaining.

Even Carol Nash whom I have now gone with could only find one and that was Aviva after a lot of chatting with their specialist advisor's.

I ain't that happy with the cost but hey ho you gotta do what yah gotta do. Hopefully I can get it tested tomorrow?

    

Kyle10

Kyle10
Life time member
Life time member
sidecar paul wrote:I've even added a Suzuki hugger to my outfit. 

UK Legalities - tyres, mudguards, number plates. Ssl10710

This is an old picture, before I painted the swing arm and bevel box black.

Paul.
Paul, that looks really good. Can you expand on the specifics? Part #, necessary mods, etc?


__________________________________________________
1985 K100rt 0052183
1983 Honda VF750 007713 
    

sidecar paul

sidecar paul
Life time member
Life time member
Olaf & Kyle,

It's from an '80s GSX750R. Fixing is not that easy and I had to make an attachment point on the swing arm for a strap on the LHS.

UK Legalities - tyres, mudguards, number plates. Ssl10711

The two extra swing arm fittings can be seen on this picture. I then made a strap that followed the internal profile of the hugger that was fixed to the front caliper bolt and the other end of the strap was connected to the swing arm boss. As I said, it's not straightforward, but when you've got the hugger and the bike things just evolve.

Paul.


__________________________________________________
'84 K100RS (0014643) (owned since '85), 86 K100RS (0018891) with Martello sidecar (built as an outfit in '88),
'51 Vincent (since '67),'72 Montesa Cota (from new), '87 Honda RS125R NF4 (bought 2015) 
....No CARS never ever!
    

Kyle10

Kyle10
Life time member
Life time member
Thanks, Paul. Inspired by your handiwork  UK Legalities - tyres, mudguards, number plates. 112350


__________________________________________________
1985 K100rt 0052183
1983 Honda VF750 007713 
    

JaseYPK

JaseYPK
Silver member
Silver member
Englishstiv wrote:Wow .... I would just take some time and see what Insurance quotes you get before you pull down the bike and change it as I have had to go through all sorts of hoops to get mine sorted today as no one would quote without a lot of explaining.

Even Carol Nash whom I have now gone with could only find one and that was Aviva after a lot of chatting with their specialist advisor's.

I ain't that happy with the cost but hey ho you gotta do what yah gotta do. Hopefully I can get it tested tomorrow?
I did consider this might be a problem, but since I'm not really riding at the moment I'm delaying the process... I'm going to sell it as a standard naked K100, with a few minor alterations.... Honest of course, but deliberately vague. It's worked for me in the past on cars, even when I've had to make a claim Smile


__________________________________________________
1984 K100 RS - The Project!
    

Englishstiv

Englishstiv
active member
active member
Well for me the UK MOT was passed without any issues other than the ride there and back in torrential rain and flooded roads which convinced me to spend the rest of yesterday evening somehow resurrecting the front part of the mudguard I cannot recall ever swallowing so much road water with any of my previous Cafe Racer conversions. !!!

    

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