An e-Mtb allows me to ride farther, and more often and smile from beginning to end, not just the downhill sections! - Low-drag performance The EP8s smooth power delivery is mirrored by its exceptionally low drag something that is totally noticeable (or rathernot noticeable) around the 25km/h cutoff point. Unfortunately this clutch also produces a metallic clack whenever it rotates back and fourth. @tomdesoals: Yeah, I get that now that bikes have become more silent anything new that makes noise can become annoying. As well as being smaller, lighter and more efficient, the new EP8 drive unit also packs more punch with up to 85Nm of torque, bringing it up to speed with the latest power plants from Bosch, Yamaha and Brose/Specialized. Upon a little digging on the internet, it appears that this functionality is only on offer for Garmin users. It was one of the most fun bikes to ride. Wed much rather see battery life displayed as a percentage, and the option to customise the screen. Shimano also claims this issue is. Along with the svelte carbon frame, that helps to reduce the total bike weight to as low as 16.2kg, creating a potentially worthy adversary to the Specialized Levo SL. The DIODE has the Shimano E8000 motor and both bikes regardless of motor specs and differences do one thing really, really wellthey make riding FUN! Weve found the first two settings to be too weak for e-MTB use, though conversely the highest setting can feel a little too peaky for some riders. Shimano advises that only approved crank arms should be used with its DU-EP8 drive units, reads Shimanos statement. But even then it is still quieter than my saddle bag bouncing around. Maybe in a next generation they can implement an optional solution analog to what we're already seeing f bicycle chains. According to e*thirteen, the safety inspection is relevant to all EP8 owners, regardless of what cranks are fitted. In a closed Facebook group called Shimano EP8 Owners, there are also reports of EP8 spindle failures. So, when the sensor senses a negative elevation gain, the dynamo kicks in to recharge the battery. When they start looking (and weighing closer to regular trail bikes then I'll consider. I had this happen on my Orbea Rise but with different circumstances. I've already posted this on the Commencal Meta SX Power thread, but wondered if other bikes with the Shimano EP8 motor and battery have seen a similar problem. Quote Start New Topic Post a reply to: SHIMANO EP8 - won't turn on (new bike) Yeah, that's pretty poor! All you guys "waiting" to get a ebike are blowing it..the bikes are refined trek rail no problems..going around the country slaying every trail I see chugging beer and laughing at all u haters.. believe me I guys will all be on one sooner than later. - Lightweight and small form factor Are we ignoring the fact that motor has been recalled/reworked by Shimano, and pushing all new bike deliveries by two months (at least)? We have shared the results with Shimano and select OEM customers. That would be awesome to do laps on. Most brains will be capable of doing this, as the noise in question isnt actually signalling a fault with the motor. The belt-driven design is also a touch quieter when pedalling, and theres no clacking noise either. Overall the tuning adjustments are quite noticeable, though wed always recommend only adjusting one parameter at a time to isolate its effect on the trail. A bit like chain slap when you don't apply force on the pedals. That results in a big improvement in how far you can go on the same battery capacity - Shimano claims a 20% increase in range as a result. Here youll find three sliding scales for each of the three assist modes (thats Eco, Trail and Boost). The MasterMind TCU head unit on the top tube is also as good as it gets, with a sharp and clear, but unobtrusive display that reduces clutter on the handlebars. What can consumers expect to happen if their EP8s spindle fails? The ability to customize the boost is very useful, with Shimano's app you can dial it in to your preferences. I can only hear any motor rattling when I am doing really gnarly rocky downhill. As much as I want an emtb right now, I am waiting until the technology is perfected. It's kinda frustrating. We bought drive units and crank arms, we are replacing at our cost all damaged parts and are covering labor [and] shipping costs that might occur. Now well point out here that the Bosch Gen 4 motor exhibits a similar metallic clacking noise, since its internal gear system also employs a clutch. Shimano's EP8, short for DU-EP800, features a higher maximum torque of 85Nm compared to the older E8000's 70Nm, topping it by an extra 21%. Did some rides on a scott e-genius 920(2020) and my biggest one I did was a 115 km with 2000 meters of ascent ,19 km average speed,all in the eco mode and riding some rocky terrain with some tarmac ,fire roads ,very mixed terrain ,and I did got impressed with the power and the range ,didnt got me so tired on the legs its most a cardio ,but dont put more power on them and no more battery capacity,cause it wil make them almost a dirt bike :-((. So this one article, about this one e-bike, says to you that ALL e-bikes lack refinement and therefore aren't worthy of you gracing them with your holy ass? You also need a special key to release the battery from the frame, which were not fans of, at least for a mountain bike anyway. And more power requires more juice. I have to admit some of the comments make me laugh out loud while others score some points for being helpful and based on fact, not hearsay fiction. Their new ride algorithms make the EP8 one of the most natural feeling motors out there, with plenty of power to propel the bike over obstacles, even if Bosch and Brose are still a bit punchier and deliver slightly more power. The Shimano EP8 RS motor, the key to the experience. JavaScript is disabled. e*thirteens analysis suggests that some Shimano EP8 spindles may have manufacturing defects which, over time, can develop into cracks with use and exposure to the elements, reads TSB 157. IMO Shimano bikes are good,but they are 2 steps down compared to Specialized and Bosch. The issue, we've been told, is that the motor body is subject to cracking when the drive is employed as a stressed part of the bike's frame. Mkay? This is a real review with details and pros and cons. Animals and Pets Anime Art Cars and Motor Vehicles Crafts and DIY Culture, Race, and Ethnicity Ethics and Philosophy Fashion Food and Drink History Hobbies Law Learning and Education Military Movies Music Place Podcasts and Streamers Politics Programming Reading, Writing, and Literature Religion and Spirituality Science Tabletop Games . While the EP8s performance on the climbs is generally excellent, we have occasionally wished for a little more overrun for clearing technical features. By their own standards of non-assist components, this motor is not worthy of the shimano name. Dont be so lazy, put in the work and suffer a little bit! Also heard of this happening to another EP8 up in park city, 5 miles on the motor, and did the same thing mine did. It's a powerful unit with a huge reach, but it has a little problem: it rattles when riding downhill or, simply put, there is no power on the pedals. The EP8 RS engine is physically the same as the . I have no personal experience riding with pedal assist but when I hear the high whiz from the motor I think that would drive me mad too. I have this motor. I can concur with the range, it's not as good as I expected. If possible, repeat this ride on the Eco and Boost modes too. Basically, the battery level drops from around 30% to 2% extremely quickly. The investigation has led e*thirteen to produce technical service bulletin 157 (TSB), published on its website on 14 October 2021. An E-bike with 200 watt power assist, 350 WH battery, and total weight of bike under 34 lbs. It is a feature bro, the sound of pure class. For a mechanic, mechanical noise is a no-no by the end of the ride Id be destroyed mentally! The sign of a true technical rider. Still, the performance in the adaptive E-MTB mode is excellent, with smooth and flexible power delivery, and riders wanting plenty of grunt will certainly dig the Bosch motor. (7000km ridden so far). Let us know what those are so we can demand them! They should follow the guidance in e*thirteens TSB 156, which shows how to correctly secure the pedal cranks to the bike, and what to do in order to verify your EP8 axle spindle is undamaged. I suppose pedal assist allows you to tackle the more fun/steep/tech climbs but to be effective it needs to be subtle too. On my older gen Bosch motor with a 500wh battery I can get about 30 miles out of a battery charge if I only turbo up the steepest climbs and do the other bits in low/mid power settings (and I'm about 100kg's / 16 stone which sucks battery). This occurs if the cap is not correctly tightened or the factory-fitted threadlock hasnt been adequately applied, and if the crank arms pinch bolts arent tightened to their correct torque. Pickup is faster too, with less hesitation between pedalling and torque being delivered to the rear tyre. It also responds a fraction quicker at the pedals, and delivers more overrun power when ratcheting the pedals over technical features up a climb. On one ride with the Canyon Spectral:ON, the range estimation initially showed 25km. - Tuning options are simple and effective Basically any minor impact that causes the chain to bounce and tug at the chainring will result in noise. Don't worry: "Every time you start your pitchfork, it resets into 'no stab' mode. I've never heard the rattling noise that has been posted in the early reviews - the motor is super quiet, so it looks to me like much ado about nothing. Limiting the maximum torque is something youll notice more at low cadences in high-load applications rather than general trail riding. At full charge in Trail mode it says range is 90km or so but I haven't put that to the test on more mellow trail days but am sure others have. So why has no one made a motorized gearbox yet? Assistance Start Here you can tweak how quickly the motor responds within the first pedal stroke. It's also a very quiet motor when pedalling. Shimano doesnt state what those design differences are, however. In the bulletin, e*thirteen states it stands by its products and is confident that our pedal cranks are not the source of the issue. I have to admit some of the comments make me laugh out loud while others score some points for being helpful and based on fact, not hearsay fiction. We haven't really got an opinion about durability. Weve ridden the latest Bosch Performance CX Gen 4 motor on a variety of e-MTBs, including the Cube Stereo Hybrid 160 and the Trek Rail. Since working for MBUK, Alexs focus has moved to bike tech. Its also a very quiet motor when pedalling. @tomdesoals: That excuse that Shimano put out by their customer service dept . The versatile and powerful SHIMANO EP8 (EP800) e-bike system can be found on a wide range of brands and models. Any rider who owns an ebike with an EP8 motor fitted with e*thirteen cranks currently has two options. It is MUCH less powerful, but there is no rattle, no weird cut off, no jerky pedal action. The Kiox head unit has a nice colour screen with plenty of useful data on it, but were not sold on the magnetic attachment and the fact that the motor wont turn on without the head unit. The reported cases of drive unit spindle breakages on our DU-EP800 drive units were combined with non-Shimano cranks. That makes it tricky to work out how much assistance youll be finishing your ride with. Don't all e-bikes feature walk assist? If speed and maximum power output is less of a concern though, switching into the factory Eco mode is a sure-fire way to get more ride time expect range to double from those figures above. Currently, I own two e-bikes with a new 2022 Moustache Samedi 26 Fat 4 with the Bosch Motor on its way. SpecializEd # levo SL is a great benchmark Have had a Specialized Levo & sold it due to making weird noises, so yes other manufacturers have problems too, not saying that is easy to get good reliability with new technology, but my Shimano e-8000 motor has been more reliable even is very wet weather! While some frames will resonate more than others, the noise is otherwise normal, and it doesnt take long before your brain subconsciously ignores it. Now I have $10k garage ornament that I can't ride for 3 months. The Pivot Shuttle, for example, employs a huge 726Wh battery made by a third party company called Darfon. Hitting those famous tracks day in, day out for eight years, he broke more bikes than he can remember. What is Shimanos take on e*thirteens metallurgic analysis findings? When youre descending down the trail, the volume and resonance are amplified. It also depends on the bike too. I also got it second hand as I just can't afford new. You can improve efficiency by limiting the maximum torque, though it is still possible to get maximum power out of the motor by pedalling at a higher cadence, so you wont necessarily get more range by limiting torque. If you don't like e-bikes for whatever reason, you really have no business even commenting on this review. Once again still want to know; is the BB replaceable on these units yet, or are they still landfill waiting to happen? That rattling feeling comes from one way bearing. Indeed Specialized actually built the new Levo around a mullet setup with a 27.5in rear wheel, in order to shorten the chainstays. Posted Oct 21, 2020. the rattle it because the sprag bearing that used to be used in most motors has been replaced by DT swiss style star ratchet drive rings. The freewheel is still in the (regular) rear hub so when you're not pedaling, nothing in the motor-bottombracket assembly should be moving, isn't it? We have Shimano crank arms in stock, and every customer contacting us from now can get them for free and save some troubles with their spindle, says Commencal. It isnt a huge difference, but sometimes its just enough for your rear wheel to make it up and over a stubborn tree root or rock ledge. - A little more overrun on technical climbs would be swell They need to get their old skunk works team back together and gain real world feedback before promoting vaporware.

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