
LOT 187
c.1973 Honda CB550 "The Mantlepiece" Frame no. DMV42985CA Engine no. CB500E-1025485
Sold for US$4,600 inc. premiumLot to be sold without reserve
Lot 187
c.1973 Honda CB550 "The Mantlepiece" Frame no. DMV42985CA Engine no. CB500E-1025485
Collectors' Motorcycles at the Barber Museum|5 October 2019, 12:00 CDT|Birmingham, Barber Motorsports Museum
c.1973 Honda CB550 "The Mantlepiece"
Frame no. DMV42985CA
Engine no. CB500E-1025485
Frame no. DMV42985CA
Engine no. CB500E-1025485
Released in 1974, the Honda CB550 was an updated version of the CB500, with the specific goal of fixing some of the problems that the bike was having. Stakes were important since the 500cc segment was probably one of the most important, being the perfect balance between the heavyweight 750cc and the low-powered 350cc bikes. Sharing the same in-line four cylinders' engine as its predecessor, the CB550 had its capacity increased to 544cc, now producing 50hp.
Already in the 1970s, some people saw an opportunity to re-create bikes in an artistic way; this CB550 'Mentlepiece' is a perfect example of this. Being a unique piece, the bike was notably featured in Cycle magazine in November 1975. The engine and safety components were modified and hand-picked by the owner himself, Howard Blau and made the 550cc engine a real racing machine bumping the capacity to 590cc. From there, Blau also wanted to get a unique look and frame. He decided to ask Chet Page, a design engineer based in Huntington Beach, CA, to help him in that quest. Page basically produced a frame, tank, seat, and nearly everything visible on the bike other than the engine. From there was born the Mantlepiece. The bike belonged to a Private Collection after that, kept as an art piece, and is now for sale in a supposedly unrestored condition. An original copy of the November 1975 Cycle magazine will be given to the buyer.
Already in the 1970s, some people saw an opportunity to re-create bikes in an artistic way; this CB550 'Mentlepiece' is a perfect example of this. Being a unique piece, the bike was notably featured in Cycle magazine in November 1975. The engine and safety components were modified and hand-picked by the owner himself, Howard Blau and made the 550cc engine a real racing machine bumping the capacity to 590cc. From there, Blau also wanted to get a unique look and frame. He decided to ask Chet Page, a design engineer based in Huntington Beach, CA, to help him in that quest. Page basically produced a frame, tank, seat, and nearly everything visible on the bike other than the engine. From there was born the Mantlepiece. The bike belonged to a Private Collection after that, kept as an art piece, and is now for sale in a supposedly unrestored condition. An original copy of the November 1975 Cycle magazine will be given to the buyer.
Footnotes
As with all Lots in the Sale, this Lot is sold 'as is/where is' and Bidders must satisfy themselves as to the provenance, condition, age, completeness and originality prior to bidding.
Saleroom notices
Please be advised that the original engine specification of this motorcycle was a 498cc CB500, but the engine displacement was increased by the builder to 590cc according to the included magazine article. Offered on a Bill of sale.





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