Trails seam sometimes to be far away and inaccessible, either because of a lack of time or steep, long, uninspiring climbs. But when you finally reach this kind of trail, we all know the payoff. We believe the fun shouldn’t be just for the downhill but should be part of the whole ride. The e-spark and its engine assist, changes the game, now the climbs are as playful and inspired as the downs.
To take advantage of everything that comes from a perfect integration of the parts, we’ve reconsidered the design of the engine housing with the Shimano components in mind. The goal was to reduce the impact of these parts on the design of the bike. As a result the engine and frame are well integrated, not only from a design perspective but also offering a better distribution of mass... As a consequence, this represents an important benefit for general handling.
The leverage ratio of the new E-Spark is as progressive as the Spark and this means that the suspension is: Sensitive at the beginning of travel and supportive from the point of sag onward.
The shock body now extends between the two lower mounting bolts which results in more stroke for the same eye to eye length. The Trunnion standard also offers structural gains. The shorter shock enables a very compact frame and shock package, which integrates tightly into the seat tube.
Routing the cables internally avoids bulky external hardware and looks cleaner. Due to the improved protection, the cables have a longer lifetime.
From the fixation of the battery to the engine cover, every detail has been thought out to provide the best housing on the frame that avoids any movement of the battery that could create rattles.
Twin Loc system offers the most efficient bike handling in any riding situation. It gives the rider the option to choose between 3 modes for different geometry and settings. The climb mode allows for real lockout, ideal for smooth climbing with maximum efficiency. The traction control mode provides front suspension with full travel but firmer damping while the rear suspension has reduced travel. This mode also changes the geometry to have a better pedaling position. In descend mode, the suspension is fully active front and rear and offers full travel.
Compared to the old Spark the head tube angle is almost 1.5 degrees slacker for more secure riding on the steeps. The chainstay length that was 488mm on the previous bike has been drastically decreased and now measures 448mm, the value is almost aligned with the Spark (438mm).
With the steps E-8000 series, Shimano delivers next level component integration, connectivity and performance. An off road evolution of the steps E-6000 series, the E-8000 represents a completely new system developed for a new experience in e-mtb.
The new color display comes in a compact size and is therefore nicely integrated on the handlebar. It provides all the relevant data required during the ride. While the display features full connectivity with Shimano Di2 components it also allows for individual settings for the information shown.
The switch has been redesigned speci cally for mountain bikes. Thanks to the ergonomic design improvements, the switch is now better integrated and o ers a similar feel as that of a gear shifter.
To meet MTB specific needs, the E-8000 series was designed with all day performance in mind. The capacity of the Ion-Lithium battery has been increased to 500WH and can now be recharged up to 80% in only 2.5 hours. The new design features a lower pro le specically for mountain bikes which improves both impact and vibration resistance. The battery pack o ers 36V of nominal voltage.
The E-8000 series drive unit has been redesigned to allow for improved integration into current mountain bike frames. The compact design of the drive unit allows for shorter chain stays and more tire clearance. These features, together with the light weight of the engine pack (below 3.2kg) and a standard Q-factor (175mm), improve handling and ride feel substantially. Along with a new drive unit Shimano has developed a new sti and lightweight BB axle with Hollowtech-II technology designed to accommodate E-MTB specic crank-sets. The drive unit achieves a maximum power output of 70Nm and 250W.