Description
BMW R24 1949
Selling from a private collection .
This bike has been recently restored from a Barn find by its former owner who was a skilled engineer.
It is a matching engine / chassis numbers bike and comes with a BMW Heritage certificate of authenticity.
It has only covered 22 miles since the rebuild so is as new!
The chrome is to show standard and the engine cases have been polished to an incredible finish which sets it apart from other restorations.
The black paintwork is fault free like the day it was built.
The wheels have been refurbished with new spokes and the rear rim is new.
It has brand new tyres.
The seat cover is new.
The detail is meticulous and everything has been done. It is suitable for those who like concours.
It has new paint with hand painted pin stripes.
The engine & drivetrain has had a full rebuild and it starts & runs perfectly.
The wheels have been rebuilt and electrics sorted. All lights work properly.
Starts 1st kick It is close to faultless.
Model history R20 & R23.
Developed from the 198cc single-cylinder R20 of 1937/ 38, the 247cc R23 was produced between 1938 and 1940, 8, 021 examples being sold. The reintroduction of a 247cc model had been prompted by changes in German licensing laws, instituting a new up-to-250cc category instead. Powered by an overhead-valve engine producing 10bhp, the R23 came with a four-speed gearbox and featured shaft drive like the larger models.
The top speed around 60mph (97km/ h).
Its R24 successor, BMW’s first new post-war model, arrived late in 1948 looking virtually unchanged from the R23 but producing an additional 2bhp. Only 12, 020 were made making it rare.
The R24 although based on the R23, featured a new engine with a number of number of new & improved components and design features, notably a new cylinder head, strongly influenced by the design of the wartime R75. The valve angle was altered, the rocker arm bearing blocks were bolted-on pillars rather than cast bosses, the pushrods were inserted through tunnels in the cylinder head. Like the R75, the valve covers were in two pieces, held by a clamp with a single bolt for easy maintenance. The compression ratio was increased slightly, as was the power, and drive was by a four-speed gearbox, while at the front of the crankshaft was a Noris dynamo, with the battery ignition incorporating centrifugal advance. The chassis was similar to the R23, with a bolted rigid tubular-steel frame and telescopic front fork. Also inspired by the R75, the bolted cradle frame allowed easier maintenance, but this didn’t appear on any other model.
In mid-1950 the R24 was superseded by the R25, which featured plunger rear suspension but was otherwise very similar. The R24 is therefore a rare and sought-after model with a production run of only 2 years.
With a chromed fishtail exhaust and trim embellishments on the fenders, the finish and appearance were of high quality for the time. And although the R24 was also the most expensive German motorcycle, racing success by Schorsch Meier on the 500 Kompressor boosted sales and 9, 400 R24s were sold in 1949. By now 800 workers were building 50 R24s a week, helped by the acquisition of new machine tools to replace those lost in reparation. R24 production continued until May 1950, when the R25 replaced it.
This R24 model has been carefully and sympathetically restored.
Tel the details below for info or delivery details
Engine
Internal designation 224 / 1
Type four-stroke single cylinder vertical
Bore/ stroke 68 x 68 mm
Cubic capacity 247 cm3 (34 in. 3)
Maximum power 12 HP at 5600 RPMs
Compression ratio 6. 75 : 1
Valves per cylinder 2
Carburation system 1 Bing 1/ 22/ 140b
Engine lubrication forced-feed lubrication
Oil pump gear pump
Power Transmission
Clutch single disc saucer spring, dry
Number of gears 4
Shifting foot shifting + aux. manual on gear housing
Gear ratios 6. 1 / 3. 0 / 2. 04 / 1. 54
Rear wheel ratio 1 : 4. 18 or 1 : 4. 25
Bevel/ crown wheel 11/ 46 or 8/ 34 teeth
Electrical System
Generator 6 volt / 45 watts
Ignition battery ignition
Spark plugs Bosch W240T1 or NGK B8HS
Suspension
Designation 224/ 1
Type of frame closed steel twin-loop tubular frame, bolted
Front suspension telescopic fork
Rear suspension rigid
Wheel rims 2. 9 x 19 deep-bed
Tires front 3. 0 x 19
Tires rear 2½ x 19
Brakes front drum brake, Ø 160 mm
Brakes rear drum brake, Ø 160 mm
Dimensions and Weights
Length x width x height 80 x 30 x 28 inches (2020 x 750 x 710 mm)
Tank capacity 4. 6 gals. (12 l)
Unladen weight, full tank 287 lbs. (130 kg)
Load rating 639 lbs. (290 kg)
Performance
Fuel consumption 67 MPG (3. 5 liters / 100 km)
Oil consumption ca. 0. 5 - 1 liters / 1000 km
Top speed 59 MPH (95 km/ h)
