Table of Contents
This BMW R45 Cafe racer is the work of a Scottish custom motorbike garage JM CUSTOMS, primarily based in Perth, on the side of the country illustrious for whiskey, haggis, and being therefore vicious in the battle that the Romans gave informed gaining control their territory and designed a wall to do to contain them.
THE TEAM AT JM CUSTOMS
JM Customs was originally founded by James Moir, an owner and lead designer who’s always had a deep love for motorcycles, design, and fabrication. James works alongside Chris Burnett (lead mechanic) to create these beautiful machines. Chris Burnett a man with years of earned experience as a specialist motorcycle mechanic.
THE BMW R45
BMW R45 1981
· Engine Type: Four-stroke two cylinder horizontally opposed “Boxer” engine, air cooled
· Bore x Stroke: 70 x 61.5 mm / 2.75 x 2.42 in
· Displacement: 473.4 cc
· Maximum Power: 35 hp (26 kW) at 7,250 rpm or 27 hp (20 kW) at 6,500 rpm
· Max Torque: 37.5 Nm at 5,500 rpm or 31.3 Nm at 5000 rpm
· Compression Ratio: 9.2: 1 or 8.2: 1
· Valves Per Cylinder: 2
· Valve Control: OHV, using push rod and rocker arm
· Carburettor System: 2 constant depression carburetors, Bing 64/28/303 – 64/28/304 or 64/26/303 – 64/326304
· Engine Lubricating System: Wet sump
The BMW R45 in the late 1970s as a mid-weight model. Thanks to its Four-stroke two cylinder horizontally opposed “Boxer” engine, its solid frame, low center of gravity, and excellent fuel economy.
Bike magazine tested this Beemer in 1979, the R45 recorded a top speed of 95 mph (154 km/h) while returning an overall fuel consumption of 56.2mpg (5.0litres/100 km)
The R45 was primarily targeted at learner drivers and some 28,000 of these were produced many of them are still on the road today thanks to their toughness and cult classic status. Today the R45 is popular with custom bike builders and are being converted into Café Racer or Street scramblersbecause of their compact dimensions, its tune-ability, and rugged build quality.
THE JM CUSTOMS BMW R45 CAFE RACER
The beautiful BMW R45 you see here is of Steve and is that the work of JM Customs based in Perth, Scotland. Steve who came across JM Customs on social media and they were building the bikes. Steve loved the design of the bikes they were building. as it happens, Steve had an old BMW R45 that had been sitting in his garage for nearly decades. He contacted JM Customs, and James Moir and Chris Burnett the 2 men came to Steve’s agreement to get the old BMW back on the road.
The R45 project began with a full teardown and examination. surprisingly the bike was in solid form despite its age.
They decided that a John Player combination (Formula 1 1972 John Player Special: Lotus’s famous black and gold livery) would be used – black and gold hues. the first BMW wheels where powder coated gold, with the frame, engine, lower fork legs, and swing arm all painted or powder coated black.
The fuel tank was painted by painter Ross Sinclair to be colored black, with gold pinstriping around the edge.
The goal was to make a solid mid-weight cafe racer, that the frame was de-tabbed and every non-essential component was removed. The original battery kit was removed and a brand new box was fabricated in-house, then fitted with a light-weight lithium-ion unit.
A set of clip-on handlebars were fitted up front together with new levers, heated grips (important in Scotland), modern switchgear, and a brand new minimalist speedometer. The front fender was chopped down. Just below the fender, the original brake rotors were swapped out for newer replacements paired with new pads.
The original seat was replaced with a brand new unit designed in-house because it was way too bulky. Replaced with a new seat pan, custom cut foam, and fabric done by local shop creative Upholstery.
The all-new custom BMW R45 bike is a masterclass in minimalist moderncafe racers. this might be a wonderful example of a proper Scottish custom motorbike.
Follow the Builder