In the case of the Sinus ENA 8, a brand of the Franconian bicycle group Winora, the central frame tube is so voluminous that one wonders whether it wouldn't also offer space for the battery. The seat tube is very steep, which improves the function of the suspension seat post, which does not tilt when sitting on it. The Bosch motor in the Active version acts a little more subdued when accelerating and on steep mountains than the performance version with higher torque. The 8-speed hub gear, on the other hand, works really well; when shifting to an easier gear, however, you have to stop pedaling for a moment, which interrupts the smooth ascent a bit.
The comfortable bike also shines with a very good chain tensioning device.
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