The ‘CYCLONE’ TM400R

.

Nicknamed the ‘CYCLONE’ the TM400R was the first Japanese production motocrosser to be mass-produced. The huge 82.5mm bore piston turned out 40 bhp at 6,500 rpm and along with the fan-finned cylinder head it had a compression ratio of 7.3 : 1.

The crankshaft halves were not full circle type as fitted to most two-stroke engines and made the engine rev more; one answer was to fit aftermarket flywheel weights made by Competition Dynamics in the USA. The clutch was based on the T500 road bike with seven fibre drive plates and seven metal driven plates it was operated by a rack and pinion type mechanism. A five-speed gearbox provided transmission. Carburation was provided by a Mikuni 34mm carburettor featuring a fuel trap around the main jet, developed to keep the float level more constant by keeping the fuel in the trap area. Air filtration was by a large capacity, dry paper element housed in an airbox under the seat.

.

1980's works CZ125

.

Via : www.vintageworksbikes.com

The following photos are of a 1980's works CZ125. The bike is water cooled and very trick! Photos compliments of www.cz-motocross.wz.cz

.

Auto Auction House RM Acquires Motorcycle Unit

.

By Jonathan Welsh

In a continuing effort to diversify its operations, the classic-car auction company RM Auctions says it agreed to acquire Bator Vintage Motorcycle Auctions. The companies did not disclose financial terms of the deal, which marks a somewhat rare coming together of vintage-motorcycle and collector-car culture.

Glenn Bator, who has run the company formerly known as Bator International Inc. for more than 20 years, will continue to lead it as a division of RM. Based in Ojai, Calif., Bator International was a longtime specialist in the restoration and sales of classic motorcycles.

RM says it will have its first major motorcycle auction during its second-annual Auburn Fall Collector Car Auction in Auburn, Ind., Sept. 1-4. The company says it is getting into the collector-bike business in part because of increasing interest from its collector-car clients.

“The establishment of a dedicated motorcycle division for our company is in direct response to our clients’ interests and requests,” states Donnie Gould, President, Auctions America by RM. “We’re thrilled to have Glenn Bator on board. His extensive industry knowledge will make Auctions America by RM events the premier venues for both buyers and sellers of classic two wheelers.” ... Read more

.