The Sigma must surely be the lowest step-through folding e-bike on the market. The Sigma is fitted with Shimano Nexus 7 Speed hub gears that are easily selected with the Nexus twist grip gear changer. Battery and assistance levels are readily seen and controlled from the handlebar mounted display. The Sigma can be folded easily for storage making it ideal for boats, motorhomes and leisure riders or for those with limited space at home. A super stylish, lightweight yet sturdy, folding electric bike.
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