BMW R100 “Slash 5” by Rind Efficiency…
For the 1970 mannequin 12 months, BMW launched their new /5 (“Slash 5”) Collection in three sizes: 500cc (R50/5), 600cc (R60/5), and 750cc (R75/5). A alternative for the previous /2 Collection, the brand new bikes boasted a slew of upgrades together with 12-volt electrics, 180-watt alternators, electrical begin, telescopic forks (versus the previous Earles-type), higher drum brakes, and a body harking back to the legendary Norton Featherbed.
In the meantime, the Sort 247 “Airhead” flat-twin boxer engine was given a chain-driven camshaft that ran beneath the crank, aiding in oil supply and making for much less frequent rebuilds. The 750cc mannequin might hit 60 mph in lower than six seconds, go the standing quarter-mile in about 14 seconds, and hit a prime pace of ~110mph — not dangerous for the day.
Although the collection would solely stay in manufacturing till 1973, the Slash 5 has earned a cult-like following, with tales of those machines reaching 500,000+ miles with solely a few rebuilds.
“Opposite to the preliminary worries from BMW traditionalists that the corporate had strayed too removed from its function-over-form roots, the /5 bike household has earned a sterling status for anvil-like reliability.” –Rider
Our good friend Robin Ludwig of Rind Efficiency has lengthy been a fan of the Slash 5 collection, as his grandfather owned an R50/5. Robin had the concept to transform his newer, extra highly effective 1980 R100 (980cc) alongside the traces of the enduring Nineteen Seventies design — a contemporary tribute to his grandfather’s bike.
“I wished to construct one thing related with right now’s technical requirements and slightly bit extra energy.”
To that finish, he outfitted the bike with a set of contemporary Showa upside-down forks, Öhlins rear shocks, Brembo brakes, sticky Metzeler Racetec rubber, and an overhauled 70-hp motor. If the efficiency upgrades pushed the bike into the twenty first century, the design went in the wrong way, turning again the clock to the Nineteen Seventies with an genuine /5 tank and saddle.
“I shortened it by about 6cm to make the look slightly sportier. Not instantly seen to many, however in the long run small particulars make the distinction.”
Certainly. The result’s Robin’s BMW “R100/5” — a customized roadster with trendy efficiency, basic fashion, and the power to hold a pillion passenger in relative consolation. We are able to’t consider a greater method to honor the /5 Collection of his grandfather’s period. This bike oozes class, and we’re instructed the bike goes in addition to it reveals. Effectively finished, Robin!
BMW R100 “Slash 5”: Builder Interview
• What’s the make, mannequin, and 12 months of the donor bike?
It’s a BMW R100 from 1980.
• Why was this bike constructed?
Most of my conversions are single-seaters and will not be appropriate for using two up. So I made a decision to construct a two-seater that I can trip on a regular basis with a passenger and possibly even on a brief trip.
• What was the design idea and what influenced the construct?
Since my grandpa owned an R50/5 I used to be impressed with it, so I wished to construct one thing related with right now’s technical requirements and slightly bit extra energy.
Changing this legendary machine was a problem, however the result’s a motorbike that impresses each on the street and within the showroom. Some folks need to look twice to see that it’s not a standard /5.
I put in high-quality suspension parts from Öhlins on the rear and a contemporary Showa upside-down fork on the entrance. Consequently, the dealing with has been improved and the bike is much more steady on the street. The brakes have been additionally upgraded, CNC Brembo GP calipers have been put in, that are in any other case used on supersport bikes. With regards to tires, the selection is Metzeler Racetec RR 18”.
Along with the technical and stylistic revision, I additionally improved the consolation. I put in an authentic /5 bench seat, however shortened it by about 6cm to make the look slightly sportier. Not instantly seen to many, however in the long run small particulars make the distinction. Changing my BMW R100/5 was a worthwhile funding.
• What customized work was finished to the bike?
- USD Fork
- Öhlins Rear Shocks
- Brembo GP CNC Brakes
- R nineT Headlight
- R50/5 Seat (6cm shortened)
- R50/5 Gas Tank
- Metzeler Tires
- S1000RR Brake Pump
- Stainless Exhaust
• Does the bike have a nickname?
• Are you able to inform us what it’s prefer to trip?
Rides like a sporty R100 as a result of the suspension and brakes are state-of-the-art. The engine is overhauled and has 70 hp, which is sufficient enjoyable to cruise.
• Was there something finished throughout this construct that you’re significantly pleased with?
I used to be impressed that small adjustments could make an enormous distinction.
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