ENERGY EFFICIENT CARBON FIBRE ELECTRIC MOTORBIKE

Brammo Empulse motorbike

employs carbon prepreg

to reduce weight

23 May 2011

This year’s lower weight Brammo Empulse electric racing motorbike features structural components made from Amber Composites carbon fibre prepreg.

Manufactured by Oregon-based electric vehicle company Brammo Inc, the Empulse sports some design improvements this year, including a new seat assembly and tank made from UK composite materials manufacturer Amber Composites‘ 8020 prepreg.

Previous bikes had only used carbon fibre for cosmetic purposes, but this year Brammo created structural components from prepreg to significantly reduce the weight of the bike in order to increase performance.

“With the Amber Composites prepreg, we were able to shave 30% off the weight of the assembly versus the previous design,” reports Brian Wismann, Director of Product Development at Brammo.

“As an added bonus, the surface finish was so straight out of the mould that we didn’t have to clear coat or paint it, saving further weight.”

The Brammo Empulse won both races of the inaugural round of the TTXGP, a zero-emission race at the Infineon Raceway in California on 14-15 May.

The Empulse’s fastest lap time at Infineon Raceway was 1:55.150, almost 2 seconds faster than last year’s winning electric bike on the 2.5 mile track. Its average lap speed was within 20 seconds of the fastest qualifying lap time of a 1000cc internal combustion Superbike on the same track.

Brammo and Amber have a long working relationship both on the Empulse as well as Brammo’s award winning commuter bike, the Enertia.

Sourced & published by Henry Sapiecha

 

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