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Bmw R65 Engine Rebuild Kit

By the Editorial Staff

March 16, 2026

BMW R45 R65 cylinder head overhaul unleaded rebuilding Twinshock and ...
BMW R45 R65 cylinder head overhaul unleaded rebuilding Twinshock and ... Image via www.sport-evolution.de
BMW R65 to 860ccm - Bigbore Kit up to model year 09/1980
BMW R65 to 860ccm - Bigbore Kit up to model year 09/1980 Image via www.sport-evolution.de

Both kits take R 80 G/S and GS-Modelle up to 60 bhp, 800cc street versions have a little extra performance and make 64 hp. Still, running smoothness is down to the piston design, just as the improved torque from 4000 revs onwards. Just to please owners of older BMW airheads we have worked incredibly hard.

Sport-Evolution Franzen GmbH
Sport-Evolution Franzen GmbH Image via www.sport-evolution.de

BMW Airhead Boxer 860cc Performance Kit (R45 & R65) Power kit to replace your existing engine cylinders on your Typ 248 BMW R45 & R65 (1978 on) with alloy Nikasil plated ones mated with forged, lighter pistons and its required new rings, gudgeon pins and circlips. Engine Parts Siebenrock 860cc Power Conversion Kit for R65 ('81-On) Code: 1100870 Price: $1,549.00. Get the best deals for R65 Rebuild Kit at eBay.com.

BMW R65 to 860ccm - Bigbore Kit up to model year 09/1980
BMW R65 to 860ccm - Bigbore Kit up to model year 09/1980 Image via www.sport-evolution.de

We have a great online selection at the lowest prices with Fast & Free shipping on many items! The BMW motorbike engine overhaul listed here is a partial overhaul of the BMW two-valve engine. The cylinders, cylinder heads and connecting rods are dismantled and checked.

BMW 2-Valve Motorcycle manufacture l BMW 2V custom bikes l BMW ...
BMW 2-Valve Motorcycle manufacture l BMW 2V custom bikes l BMW ... Image via www.sport-evolution.de

The condition of the connecting rod bearings allows conclusions to be drawn about the other innards of the BMW engine. This does not guarantee that the engine is in good condition, but it has proven to be a reliable. The 860cc conversion kit for all BMW R65 models up to 9/80, including all Head Gaskets and Installation Instructions.

BMW R65 auf 860ccm - Bigbore Kit bis Baujahr 09/1980
BMW R65 auf 860ccm - Bigbore Kit bis Baujahr 09/1980 Image via www.sport-evolution.de

The kit contains Nikasil coated cylinders with lighter (150g), spontaneous quiet running pistons. The kit also contains new piston rings, piston pins and stainless steel push rod tubes already installed in the cylinders. BMW Airhead Experts.

Carburetor-Rebuild-Kit-for-BMW-BING-CV-32mm-32-MM-R65-R75-R80-R90-R100 ...
Carburetor-Rebuild-Kit-for-BMW-BING-CV-32mm-32-MM-R65-R75-R80-R90-R100 ... Image via www.aliexpress.com

40+ years experience. Ted Porter's BeemerShop offers exceptional quality replacement, accessory & classic replica parts. Shop now.

Buy Carburetor Carb Rebuild Kit For BMW BING CV 32mm for Airhead R65 R75 R80 R90 R100 R45 R 65 100 45 80 75 90 (C): Rebuild Kits. In addition to our regular tune-up maintenance kits, you'll find BMW Airheads Service Kits for other frequently performed jobs such as Clutch replacement, Front Suspension revival, complete Carb Rebuild, and Top-End Reseal, and more. BMW R65 Parts Engine and Transmission The BMW R65 is a 4 stroke, Touring bike with a Air cooled 649.00 ccm (39,40 cubic inches) Two cylinder boxer, 2 Valve type of engine.

This engine then gets the power to the rear wheel with a Shaft drive (cardan) driven transmission.

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