6.3 gallon tank adaptation

[fabiox]

Do you know if the 6.3 gallon tank from old R 75/5 fits 1995 R100RT naked?
because Hoske / Heinrich cost too much and its hard to find.

[barryg]

The monolever gas tank is a different design. The underside of a monolever gas tank has one side cleared out to fit the electrical components that have been moved from the head light bucket to the frame. As an aside the tank also lost gas capacity. So no the /5 will not fit.

[fabiox]

thanks Barryg.
Do you know if I can find any tank bigger for my R100

[barryg]

Not that I'm aware of. U might try a R100GS PD tank.

[Boxerkuh]

A GS/PD tank should fit, but you will more than likely have to change seats and/or luggage rack also to a GS, because if I am not mistaken the R and GS seats and luggage rack are different. PD tanks are expensive, also about a grand; Touratech/Arebics (sp?) sells a 30+ liter or 40+ liter tanks that is about a grand. All expensive options. You can check some of the long distance motorcycle websites about some external tanks that you can mount on the pillion seat or the luggage rack. From what I have read that is usually a cheaper option...

[widebmw]

What bike do you have ?
A R100 monolever or a R100R ?
A GSPD tank, seat and rack will fit on a R100R.

[fabiox]

1994 R100RT nacked

[barryg]

I'm on the trail of a '90 R100 Classic monolever. I got to sell one bike to make room for it. Any one interested in a nice 87 K100RT.

[fabiox]

1994 R100RT nacked

She is at Tom Cutter in PA now at the Chicken Race Garage SPA for a total new fork job and push rods etc....
I cant wait to ride again I love that bike.
What do you ride?

[fabiox]

I'm on the trail of a '90 R100 Classic monolever. I got to sell one bike to make room for it. Any one interested in a nice 87 K100RT.
flying brick...

[fabiox]

A GS/PD tank should fit, but you will more than likely have to change seats and/or luggage rack also to a GS, because if I am not mistaken the R and GS seats and luggage rack are different. PD tanks are expensive, also about a grand; Touratech/Arebics (sp?) sells a 30+ liter or 40+ liter tanks that is about a grand. All expensive options. You can check some of the long distance motorcycle websites about some external tanks that you can mount on the pillion seat or the luggage rack. From what I have read that is usually a cheaper option...
Thanks Boxerhuh
I am curious about the RS they are more powerful then the RT but the handle bar is it comfortable?

[barryg]

I think all R100 monolevers in US from '88 till the end of run were rated the same HP, that being 60. The only real difference was final drive ratios. I think I'm right on that. I like the idea of a airhead with tubeless tires with no fairing or paralever.

[fabiox]

BMW R 100 RT

Date 1987 - 1996
Number sold 9.738

Price 16.150,- DM

Engine
Type four-stroke, two-cylinder, horizontally-opposed "Boxer" engine, air-cooled
Bore/stroke 94 x 70,6 mm
Cubic capacity 980 cm3
Max power 60 PS (44 kW) at 6500 rpm
Max torque 74 Nm at 3500 rpm
Compression ratio 8,45 : 1
Valves per cylinder 2
Valve control ohv, using push rod and rocker arm
Carburation system 2 constant depression carburettors Typ Bing V 64/32/363-64/32/364
Engine lubrication wet sump

Power transmission
Clutch dry single plate, with diaphragm spring
Number of gears 5
Gear selection dog-type gearbox (ratchet foot lever)
Gear ratios 4,4 / 2,86 / 2,07 / 1,67 / 1,50 :1
Rear wheel ratio 1 : 3,0
Bevel/crown wheel 11 / 33 teeth

Electrical system
Alternator Bosch 12 V / 280 W
Ignition contact-free electronic ignition (Bosch)
Starter Bosch 0,7 kW
Spark plugs Bosch W 7 DC/Beru 14-7 DU / Champion N 9Y

Suspension
Type of frame double-loop tubular frame with bolt-on rear section
Front suspension telescopic fork with hydraulic shock absorber
Rear suspension BMW Monolever with single swinging arm
Spring travel 175 / 121 mm
Rims front MTH 2,50 x 18 E
Rims rear MTH 2,50 x 18 E
Tyres front 90/90 18 51 H
Tyres rear 120/90 18 65 H
Brakes front single disc brake Ø 285 mm
Brakes rear Simplex drum brake Ø 200 mm

Dimensions and weights
Length x width x height 2175 x 960 x 1478 mm
Wheel base 1447 mm
Ground clearance 140 mm
Tank capacity 22 l
Unladen weight, full tank 229 kg
Max permissible weight 440 kg
Fuel consumption 4,30 l / 100 km (at constant 90 km/h)
Acceleration 0 - 100 km/h 5,0 s
Top speed 185 km/h


BMW R 100 RS

Date 1986 - 1992
Number sold 6.081

Price 15.700,- DM

Engine
Type four-stroke, two-cylinder, horizontally-opposed "Boxer" engine, air-cooled
Bore/stroke 94 x 70,6 mm
Cubic capacity 980 cm3
Max power 60 PS (44 kW) at 6500 rpm
Max torque 74 Nm at 3500 rpm
Compression ratio 8,45 : 1
Valves per cylinder 2
Valve control ohv, using push rod and rocker arm
Carburation system 2 constant depression carburettors Bing V 64/32/363 - 64/32/364
Engine lubrication wet sump

Power transmission
Clutch single discs, dry mit übersetzter Tellerfeder
Number of gears 5
Gear selection dog-type gearbox (ratchet foot lever)
Gear ratios 4,4 / 2,86 / 2,07 / 1,67 / 1,50 :1
Rear wheel ratio 1 : 3,0
Bevel/crown wheel 11 / 33 teeth

Electrical system
Alternator Bosch 280 W
Ignition Kontaktlose elektronische Ignition (Bosch)
Starter Bosch 0,7 kW
Spark plugs Bosch W 7 DC / Beru 14 - 7 DU / Champion N 9 YC

Suspension
Type of frame double-loop tubular frame with bolt-on rear section
Front suspension telescopic fork with hydraulic shock absorber
Rear suspension BMW Monolever - swinging arm
Spring travel 175 / 121 mm
Rims front MTH 2,50 x 18 E
Rims rear MTH 2,50 x 18 E
Tyres front 90/90 18 51 H
Tyres rear 120/90 18 65 H
Brakes front single disc brake Ø 285 mm
Brakes rear Simplex drum brake Ø 200 mm

Dimensions and weights
Length x width x height 2175 x 800 x 1380 mm
Wheel base 1447 mm
Ground clearance 140 mm
Tank capacity 22 l
Unladen weight, full tank 229 kg
Max permissible weight 440 kg
Fuel consumption 4,3 l / 100 km (at constant 90 km/h)
Acceleration 0 - 100 km/h 5,0 s
Top speed 185 km/h


THE SAME BIKE but a RT sold more

[Boxerkuh]

You basically have the same bike I do; the only difference is mine is a 86 and a 800. Mine started out as an RT, then it got converted to a R (like yours now), then to an S with a Parabellum Sport Fairing, then to the RS fairing. The handlebars were changed when the RT fairing came off to the BMW S handlebars, I added a set of bar bax when I hurt my lower back. I still have the same set up on the bike, eventhough I have the RS fairing. The RS fairing is narrower than the RT fairing, gives excellent weather protection and does the more upper body protection than the R or the S fairing. As far as power is concerned, it is unchanged... You are messing around with the "looks" of the bike and not the "engine or powertrain." That is one of the reasons I love the Airheads... they are sooo interchangeable.