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Moto blog

Dealer Expo 2010: Yoshimura R-77 Slip-On Exhaust

Yoshimura is playing to the green movement with its new R-77 slip-on canister with integral catalytic converter. The version ready for the 2008-09 Honda CBR1000RR is claimed to be three pounds lighter than stock and offers a big bump in midrange power. Most importantly to the greenies, however, is that it produces fewer emissions than other performance mufflers.

A Weighty Issue

For as long as I can remember, motorcycle manufacturers have been playing fast and loose with regard to what they claim for the weight of their bikes. The “dry weights” they foisted upon us had little basis in reality. The “dry” part of that claim meant that listed weights on a spec chart were the result of all fluids being MIA from the bike, including necessities like engine oil, coolant and fork fluid (not to mention fuel), but even that didn’t fully explain the overly optimistic specs.

Jefferies' TT V&M R1 for sale

We got a tip-off about a former David Jefferies TT R1 for sale on eBay. The owner says it's from the 1998 TT but I'm pretty sure it was the one he raced in 1999. Here's a little bit more background about the V&M TT effort in 1999: In 1990 Jack Valentine gave up racing to concentrate on running V&M Racing, and after being sacked by Honda at the end of the 1998 season, the team set about to do some giant killing.