this dude knows how to write a review, well done. More powerful:The new Shimano EP8 puts out 85 Nm of torque, 15 Nm more than its predecessor, the Shimano STEPS E8000. Wait, 23-27kms? - Low-drag performance Others will tell us the EP8 is a weaker motor. Specialized is close to this. The newly shaped buttons on the EM800-L switch unit provide a nice tactile perch for your thumb to quickly flick between those settings. Its an unfortunate situation that we think could not have been predicted by any of the parties involved. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Weve been living with the Shimano EP8 motor for six months now across three different bikes; the Merida eOne-Sixty, the Polygon Mt Bromo, and the Canyon Spectral:ON. People know you're not running some old E8000 or E7000 motor. What's left is just a plain old mountain bike with a weight around 14kg. One of the more intriguing aspects of EP8 is the ability to fine-tune the motors performance via Shimanos E-Tube Project app. The brand suggests EP8 owners should inspect their motors spindles for damage or cracks originating from the drilled hole used for the pedal crank retainer hook, located on the splined portion of the axle. Sometimes that means a DIY fix and other times it can mean a recall, software update or part replacement by a dealer. Under this condition, with each ride the crack can expand, and this can result in a spindle breakage.. I tried to find out the cause of this. According to the TSB, only Shimanos EP8 motor is affected. This means that if you ride in the default Trail and Boost settings, youll actually end up with a similar total range as the old E8000 motor, albeit with the benefit of more power and assistance throughout the ride. There is zero stickiness at the pedals that we could detect. A dinamo or recharging when braking or something That's what I'm still waiting for! No, not at all. The YT Decoy also utilises its own 520Wh battery and the the Orbea Rise is built around a smaller 360Wh battery. While some frames will resonate more than others, the noise is otherwise normal, and it doesnt take long before your brain subconsciously ignores it. Chuckle. The complaints of charge bars on the display and the bike starting without any assistance are non issues for me. e*thirteen is one of the biggest OEM suppliers of cranks on electric mountain bikes. You can't imagine what kind of thought must have gone behind that response? I wish real bike reviews were this detailed. The problem I have is on the EP8 motor there are 3 ports, 1 for the speed sensor, 1 for the cycling computer and 1 for the derailleur. Can never hear it over the sound of the wind rushing by or the trail / wheels noises. Funny that Shimano now budget e-bike motor builds? Its almost as if the battery drains faster in that final 20%. A bike that weighs almost half as much as the rider. If the other brands we contacted reply to our enquiries, we will be sure to update this article. How stuff like this gets through what I would like to think was extensive testing I will never know. I also got it second hand as I just can't afford new. Really? On top of that, Shimano also appears to be cool with brands building their bikes with non-Shimano batteries. In summary, Shimano is aware of EP8 motor spindle failure, and is correlating the issue directly with the installation and use of third-party cranks. - Tuning options are simple and effective Quote Start New Topic Post a reply to: SHIMANO EP8 - won't turn on (new bike) While weve certainly been impressed by the power, ride feel and tuneability of the Shimano EP8 system, how does it stack up against the likes of Bosch and Brose/Specialized? Let us know what you find out. 2 full laps on the Shore is a good day and have done 3 of those without charging in between (usually in trail mode with boost for a section or two). The charge bars are a major issues though on the 8000, after a bit of use the battery becomes extremely unpredictable. I feel like I've been missing out on so much! 20ft into my ride and the motor cut out. Reading between the lines, we suspect the misinterpretation e*thirteen is referring to is regarding the EP8 bottom bracket axle spindle failure noted in TSB 157. For riders scoping out bigger rides than that, youll want to consider dialling down the Assistance Character to improve efficiency. @tomdesoals: That excuse that Shimano put out by their customer service dept . Its a little different though, with Orbea detuning the motors power and assistance to improve efficiency so it can use a smaller and lighter 360Wh battery. What is rattling? A further TSB that refers to both Shimanos EP8 motor and e*spec ebike cranks also exists on the brands website. I've had a go on ebikes and think they're fantastic and good fun. Simply enjoy what you are riding and watch the world, I should say, e-bike world, pass you by, as they are here to stay and while they are not perfect they are probably the best and most exciting thing to happen to the bike industry in 50 years! I can only hear any motor rattling when I am doing really gnarly rocky downhill. My Bullit died after 80 miles - same symptoms you describe. The most prominent reports of EP8 axle failure exist on two EMTB forum threads. Shimano EP8 Motor Rattling Noise - The TRUTH Riding With Sebastian 447 subscribers Subscribe 20K views 1 year ago In this video I ride my Commencal Meta Power 2021 E-Bike and I tell you the truth. In addition to the challenge of having remaining battery life displayed as five bars, the range estimation tends to drop quite quickly during the final two bars. Otherwise I do not care. As to how the de-tuned EP8 motor performs? I was sure it was a motor issue till I realized I needed to put the speed sensor on the new wheel. With the new EP8, Shimano managed to close the gap to its biggest competitors. It was one of the most fun bikes to ride. These findings are the result of an independently commissioned investigation by e*thirteen, after the brand became aware of reports that EP8 spindles were failing on bikes fitted with its ebike cranks. On my e8000, my impression was (now on a Trek Rail w a Bosch gen 4) that if you were at two bars, you were really at one, and if you were at one, youd better be a couple of blocks from home. Can they make it swappable with a gear box? Some claim it's a dangerous motor that suffers spindle failures. Additionally, Shimano produces a smaller and lighter 504Wh option, which is also cheaper and helps to bring the complete bike price down see the sub-$8K Polygon Mt Bromo N8 for example. This also allows brands to more neatly integrate the motor into their frame designs, Canyon having done a particularly swell job with the Spectral:ON. 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. 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. Then we'll fix that for you. Thanks to lightweight magnesium components, Shimano has shaved off a cool 200g of weight making it one of the lightest electric bike motors on the market today. What settings you end up will depend on your personal riding style, and your expectations of range and power output. - Can we have remaining battery displayed as a percentage please? 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%. Mkay? Basically, the battery level drops from around 30% to 2% extremely quickly. Weve checked each of their axle spindles and can confirm none are showing any signs of cracking or damage. IMO Shimano bikes are good,but they are 2 steps down compared to Specialized and Bosch. Despite the musclier performance, weve had excellent results in terms of range, with the Bosch motor regularly achieving more miles and elevation over EP8. We like to setup Profile 1 with softer settings for maximum range when riding solo, and Profile 2 with the punchier factory settings for faster e-MTB group rides. Then theres the BT-8035-L battery, which is a 504Wh battery that shares the same physical dimensions as the 630Wh version. 1. Repair and maintenance of Bosch, Shimano, Yamaha and Brose eBike motors Repair and maintenance of eBike motors from the following manufacturers: Bosch Active Line, Bosch Active Line Plus, Bosch Cargo Line, Bosch Performance Line and Bosch Performance Line CX For more details on the full range of Bosch motors click here Try to tackle crazy steep tech climbs. I also have a YT Decoy with Shimano E8000 motor. Climbs really well and descends like a beast. You still have the three basic assist modes: Eco, Trail and Boost. As it stands, you have to use the small button at the base of the display to manually scroll through additional pages just to see your cadence, estimated range and the time. 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. Indeed Shimano EP8 is starting to become available across quite a wide range of bikes at various price points. When youre at those 30-40km/h descending speeds, EP8 doesnt punish you for stamping on the pedals to build some extra speed in the lead-up to a jump or dropoff. - High quality display & controller So many issues that can be simply solved by not having a motor. Its considerably bulkier than Shimano EP8, dominating the Levos frame profile while also putting limitations on rear wheel clearance. 3. While the EP8s performance on the climbs is generally excellent, we have occasionally wished for a little more overrun for clearing technical features. 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. Shimano said August was the best. We will have them soon available in all our subsidiaries (Canada, USA, Chile, Australia, NZ and Reunion Island) to reach all our customers worldwide.. 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. I can concur with the range, it's not as good as I expected. Have had my Norco Range LVT with the EP8 for a week and have noticed the noise, maybe once? Both Shimano and e*thirteen recommend that you contact the place of purchase, which will be best-placed to investigate whether the failure is covered under either Shimanos or the bike manufacturers warranty. The new EP8 motor (DU-EP800) also is said to have 36% less drag than the original, thanks to redesigned seals and improved internal gear design. The Purion controller is vastly simpler and easy to read, but it looks cheap and its bulky, making it an awkward fit with brake and dropper levers. Hitting those famous tracks day in, day out for eight years, he broke more bikes than he can remember. Seeing if anyone else out there has had problems with their EP8. Shimano also claims this issue is entirely isolated to non-Shimano cranks, stating it is aware of 49 reported cases of spindle failure. Nothing like on an ebike. Also the bikes will be heavy as f*ck with an 820Wh battery. Unfortunately this clutch also produces a metallic clack whenever it rotates back and fourth. In addition to those weve tested, youll be able to find Shimano EP8 on the Santa Cruz Bullit & Heckler, Marin Alpine Trail E2, the Commencal Meta Power, YT Decoy,Pivot Shuttle and Mondraker Dusk. Truly unfortunate you lost it. This means its impossible to tell whether you have 21% or 49% battery remaining. When we see failures like this, it is incumbent on us to find the root cause and, if it is within our control, provide a resolution, reads e*thirteens statement. Hes one of BikeRadars lead testers and knows how to push bikes and products to the limit, searching out the equipment that represents the best value for money. All the grit is gone because it's clearly stuck between your bitter little arse cheeks.. Oh man, so that must mean you know of rigs they've received that they've not done first rides and then field tests on. Update. As mentioned above, the Assistance Character bears the biggest influence on the motors on-trail feel, and dialling this down can make quite a big difference to the amount of range you can get from the battery. There is zero stickiness at the pedals that we could detect. Total power isnt quite as brutish as Bosch and Brose, but the real beauty about EP8 is that it retains the smooth and intuitive performance that we loved about the old motor. In terms of improvements, EP8 is marginally lighter (300g) and smaller in volume (10%) over the old E8000 motor. Now I have $10k garage ornament that I can't ride for 3 months. Not everyone has the time to grind for an hour up the climb. The lighter weight is a big plus as well. This means its impossible to tell whether you have 21% or 39% battery remaining. This is a real review with details and pros and cons. All I could find is that bike manufacturers are to hold off selling the EP8 until Oct/Nov while they addresses some final issues. It also responds a fraction quicker at the pedals, and delivers more overrun power when ratcheting the pedals over technical features up a climb. Step 2 - Identify if preload caps have a pre-applied threadlocker patch and apply if necessary. And more power requires more juice. "While we dont expect people to ride with their phone on their handlebars when mountain biking" - Buddy, you must not have seen many e-bike riders. It's like a dirt bike with a 15 mile range. By their own standards of non-assist components, this motor is not worthy of the shimano name. For a better experience, please enable JavaScript in your browser before proceeding. Ebikes are cool but not quite refined enough to jump in yet. 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 touch points are all up to typical Shimano standards of quality, though we would like to see improvements to the functionality of the display unit, notably having battery life shown as a percentage. Since working for MBUK, Alexs focus has moved to bike tech. 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