2018 Riese & Müller Packster 40 NuVinci Review


Technical Specs & Ratings



Packster 40 NuVinci


Class 1, Class 3


Front Suspension



Hydraulic Disc



482.4 Wh

482.4 Wh

75.2 lbs / 34.14 kgs



Frame Details




Front Suspension


Suntour XCM32, 70 mm Travel, Two Preload Adjust Clickers, 100 mm Hub Spacking, Novatec Hub, 15 mm Thru-Axle with 5 mm Hex

Alexrims MD30 Front 30 mm Width 32 Hole, Alexrims MD30 Rear 30 mm Wide 36 Hole, Aluminum Alloy, Double Wall | Spokes: Stainless Steel, 14 Gauge, Black with Silver Nipples

Front: Schwalbe Big Ben Plus, 20" x 2.15" (55-406), Rear: Schwalbe Big Ben Plus, 26" x 2.15" (55-559), Reflective Sidewall Stripe, 30 to 55 PSI, Performance Line GreenGuard, SnakeSkin


ACROS with Blocklock, Semi-Integrated, 1-1/8" Diameter

Alloy, Telescoping Height (4.5" with 6 Positions), FSA V-Drive 80 mm Length, 17° Rise

FSA V-Drive, Alloy, Flat, 31.8 mm Diameter, 600 mm Length

Ergon GP1 Ergonomic, Locking

Cane Creek Thudbuster ST, 31.6 to 34.9 mm Shim


Selle Royale Shadow, Gel

VP-191 Alloy Platform with Rubber Tread

Hydraulic Disc

Tektro Auriga Comp Hydraulic Disc with 160 mm Front Rotor 203 mm Back Rotor, Four-Finger Tektro Auriga Comp Levers with Adjustable Reach

Video Reviews

Written Reviews

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Riese & Müller designs and produces some of the coolest electric cargo bikes around, and the new Packster 40 is a spinoff of their larger Packster 60 and 80 model, which I reviewed in 2017. It’s a flexible platform that can move goods or additional passengers (just one in the case of the Packster 40), yet remains comfortable and compliant. Many of the cheaper value-oriented electric cargo bikes I have tested and reviewed, such as the RadWagon, suffer from frame flex. This can lead to speed wobble depending on how weight is situated across the frame, and it doesn’t inspire confidence at high speed. The Packster 40, by contrast, feels rigid and nimble. It can haul up to 350 lbs of cargo and is offered as a Class 1 20 mph ebike or Class 3 28 mph speed pedelec, which is well-suited to commuting. The front box options are a bit narrower than the Packster 60 and 80, which allows for steeper cornering, and the ground clearance is surprisingly good because the wheelbase is shorter. Additionally, the smaller 20″ front wheel and 26″ rear wheel bring the box and mid-section down low for easier loading and mounting of the bike. Measuring ~88 inches in length, it’s actually shorter than the full-suspension R&M Load model, which has a wider box that can fit two children facing forward. The Packster 40 takes a different approach, allowing for one small passenger to face backwards, towards the rider. It’s an intimate experience, and one I got to experiment with first hand with the help of Chris Nolte, the owner of Propel Bikes in Brooklyn. With the sturdy double-leg kickstand deployed, the bike feels very stable and is easy to climb into. From there, pushing off and pedaling the 75+ lb bike forward is easy with motor assistance from the Bosch Performance Line motor. As someone with a sensitive back and neck, I deeply appreciated the 70 mm suspension fork and Thudbuster ST suspension seat post. Whether you’re a petite rider, or someone with long legs and arms, the Packster can be adjusted to suite your body comfortable because the seat post goes up and back while the handlebars go up into six locking points. You do pay for the quality German engineering on this product, but you get excellent dealer support and a leading drive system with options to upgrade battery capacity and double range, accessorize with racks, and optimize for a range of utilitarian or family activities.

Driving this bike is one of two Bosch mid-drive motors. Both are designed to measure your rear wheel speed, pedal cadence, and pedal torque, 1,000+ times per second. Both offer shift detection, and both use a smaller proprietary chainring that spins 2.5x for each crank arm revolution. This is one of the most celebrated motors in the ebike space globally, it’s known for being reliable, and can support up to 120 RPM pedal rotations. This means that you can simply pedal faster to make the bike go faster without having to shift gears as frequently. Some of the downsides I have noticed are that the motor weighs a bit more at ~8.8 lbs, can produce more noise at high power (kind of an electronic whining that you can hear in the video review above), and causes a bit of pedal friction when the motor is off and when you try to exceed the maximum assisted speed. That 2.5 reduction gearing setup translates your pedal strokes into more motion, which empowers the motor but creates a bit of drag for you. It’s a minor gripe, and some of the other benefits are improved responsiveness and chain retention. It’s a trade-off that Bosch has moved away from with their new Active Line motors, but those don’t offer the same power and torque as the CX and Speed motor options on offer here. The demo model I tested for this specific review used the high-torque Bosch Performance Line CX motor, which offers 350 to 570 watts of power and up to 75 Newton meters of torque. It’s extremely capable if you shift gears thoughtfully, and the demo bike I tested had a “shift anytime” NuVinci CVT drivetrain. Instead of using steps to change pedal cadence, it uses an “infinitely variable” ramp. Contained inside the rear hub are eight orbs that pivot and change input rotation to output speed as you twist the right half-grip shifter. It’s extremely smooth and can be done at standstill (which is handy for such a heavy bike, in case you forget to shift down as you come to a stop), but this fancy system does add to the price and weight of the bike. If you opt for the less-expensive Shimano Deore 10-speed drievetrain, you’ll get faster shifts but more banging as the chain jumps from one sprocket to the next, as well as more grease and noise. The NuVinci system comes with a belt drive setup that is clean, quiet, and set at a fixed length. In some ways, this makes the motor sound louder, but my experience (and feedback from shops) is that the belts require less maintenance over time and rarely fall off because of a center-tracking design that Gates has patented.

Powering this bike is one or two Bosch Powerpack 500 batteries. I love this product because it’s compact, relatively lightweight, has an integrated 5-LED charge readout on the left, and a big loop handle at the top. These Lithium-ion batteries are not cheap, and if you drop it (or decide to get a second battery to extend range on the Packster 40) it will cost you upwards of $900! And, I believe you have to decide on a second pack at the time of purchase in order to get the second docking point (which mounts to the back left side of the box). Oh yeah, and you’ll need to order the box or carry system for $164 or $218 respectively. Design wise, there’s not a lot to complain about with any of the Riese & Müller products, so I’m going to take this opportunity to say that it would be nice if they just included one of the box/carry options by default. Maybe that would increase the MSRP and be wasteful for some riders? I guess I enjoy choice… and that is a big part of the R&M philosophy. All of their products are built to order, it’s how they are able to offer so many accessory and build options, but it can take over a month to fulfill once an order has been placed (especially in the United States). The good news however, is that you know that you’re getting the latest and greatest hardware (as they make iterative improvements throughout the year) and your battery pack won’t have been sitting in a warehouse for an extended period of time. These packs should last well over 1,000 full charge cycles and can be cared for by storing in a cool, dry location. If you opt for the second battery option, for a 1 kilowatt hour capacity, you can fill both packs at once by plugging the fast 4 Amp charger into the bike. If you take the batteries off however, they will need to be plugged in independently. If you opt for the box or carry system, there’s a spot for mounting a bottle cage and folding lock on the right side that sort of balances out the second battery, which would be mounted to the left. The first default battery is mounted low and center on the frame, below the short top tube for protection. I love that the pack has been pointed backwards, in order to position the charging port clear of the right crank arm. There are so many little design considerations that have been maximized here, such as the included ABUS frame lock that immobilizes the back wheel. It uses the same key as the battery locking core so you don’t have to deal with clutter and lost or confused keys.

Operating this electric bike is very straightforward. Once the battery pack (or packs) have been filled and mounted securely to the frame, you simply press the power button at the lower left corner of the large, Bosch Intuvia display panel. This display is awesome! It can be taken off the bike for safe keeping if you commute (just like the batteries) and has a little Micro-USB port on the right edge for filling your phone on the go. That’s a really convenient feature if you’re a delivery person who uses GPS to get around. The display pivots to help you reduce glare, it has an always-on light glow so you can read it at night, and the most common input buttons are externalized near the left grip, so you can interact while riding without compromising steering and balance. So, the display blinks to life quickly when you press the power button and then shows a five-bar battery infographic, your current speed in the middle, and a list of assist levels with a dynamic power chart on the right. If you get the Bosch CX motor, those assist levels will be off, eco, tour, eMTB, and turbo. The eMTB mode is special, and works more like a torque sensor with full-range output. If you arrow up to this mode, using the left button pad + and – buttons, it allows to motor to offer between 130% and 300% assist power. By contrast, the Bosch Performance Line Speed motor has a sport mode instead of eMTB which offers a set 210% output. Each of these four modes still relies on pedal torque to determine how much power is set… but it’s kind of nice to have that extra torque and range of power with the CX motor and eMTB mode for a cargo application. It allows you to balance the bike realtime by working with the motor instead of reacting the to the motor, if that makes sense. I thoroughly enjoyed the CX motor on this ebike, and tend to go for slightly lower speeds when navigating with cargo or kids, but could definitely see myself feeling comfortable with the Speed option. So anyway, the other readouts on the display are listed below the speed number and can be changed by pressing the i button on the right side of the the display as well as with the rubberized i button on the control pad. These menus include average speed, max speed, trip distance, odometer, timer, and range. Range is way more useful than the 20% battery bar increments, and they update dynamically based on your last mile of riding, the battery charge level, and the currently selected assist level. Let me tell you, it’s not fun to run out of electric assist with a full load of cargo… so use the range selector to plan accordingly and consider bringing the battery charger along so you can do a quick top-off if necessary. Bosch does offer a slower but lighter and smaller travel charger that puts out 2 Amps. That could be a nice extra to bring along? Another cool feature that Riese & Müller enabled for their ebikes is walk mode. This can be useful if you have to cross sand, get a flat tire, or are walking through a crowded area where riding simply isn’t appropriate. Again, this is a heavier and larger bike, but it’s definitely more maneuverable than a lot of the competing cargo products I see and review.

There’s a lot to appreciate with all of the Riese & Müller products but the Packster 40 really made me smile. The front cargo box option has a swivel-up headrest thing that offers some comfort as well as a pass-through viewing of the front wheel. being able to see the wheel turn improves confidence… and I love that both wheels have extra-wide fenders to keep the cargo and you dry. The chainring has a plastic cover, the tires are reflective for safer night riding, and the integrated lights are larger than most, with the headlight offering 165 lumens, pointing where you steer, and being sprung above the suspension fork vs. on it (which can be bouncy). The headlight is also slightly higher in this position, so the beam isn’t obstructed by the front fender, and the Aluminum alloy housing is much tougher. It’s great to have lights that don’t require disposable cells and additional button clicks to activate and de-activate each time you go out riding. I also appreciate the locking Ergon grips, which reduce wrist nerve sensitivity, and the basic flick bell for friendly signaling. Even though this electric cargo bike does not have a throttle, I have found that the Bosch motors are fast to respond and powerful enough that my knees never felt sensitive… and being Class 1 and Class 3, the bike is legally allowed in more places, like New York City. Neither wheel is secured with quick release skewers, so changing flats will take longer, but the axles are thicker and stiffer, and you won’t have to worry about theft of wheels as much. The seat post does use quick release, so I’d suggest getting a folding lock and using the keyed-alike program from ABUS so you can use the same key for all locks and batteries… and I might use a seat post leash to secure the saddle and post, since they are nicer. The final word of caution I’d like to share is that if a child is riding in the front box and holds onto the sides of the box, their fingers could be vulnerable if you scrape a wall or railing. Just keep an eye out or have a “hands inside” policy. There are some full-surround tubing options for many rear cargo bike racks that have two tubes (one to hold and one to protect) but that’s just not the case on this bike. Thankfully, the padded seat with recessed foot position and multi-point harness should keep them comfortable and seated. I thought the “glove compartment” space was another really clever design here, allowing the padded seat to fold down into the base of the cargo box, allowing for protection and an even loading surface when you transition from hauling people to gear. Big thanks to Riese & Müller for partnering with me on this post, and Chris at Propel for bringing out several bikes to test and explore back to back. I will do my best to answer comments and questions below as well as the Riese & Müller electric bike forums.


  • The Packster comes in three length sizes now: 40, 60, and 80, and the 40 is their newest… it’s lighter, more nimble to steer, and won’t take up as much space to store (it’s their shortest cargo bike at 88″ vs. 97″ on the Load), yet it doesn’t sacrifice on comfort or safety
  • One of the coolest features of this new shorter model is that you can flip up the head rest in the front bucket to see the front wheel while you ride, I found that this makes steering easier and more natural
  • The front bucket is versatile and Riese & Müller do sell an optional rear rack, but I love how you can also mount a bottle cage on the back of the wooden portion of the bucket or put your bottle into the canvas section where there’s a zippered pouch for easy access while riding
  • The headlight is positioned really well, it points where you steer and is sprung so it won’t bounce around like a lot of other designs I see (where the light is mounted to the arch of the suspension fork)
  • Both LED lights are integrated, meaning that they run off of the main battery pack, and I appreciate how the tires have reflective stripes on them to further increase visibility from the sides, the light grey frame color option might help the bike to stand out even more in the dark
  • By default, you get the larger Bosch Powerpack 500, but you can add a second battery pack to double your range and they will both charge off of a single port and can both still be removed to reduce weight during transport or store and charge separately
  • As with most cargo bikes, there’s a sturdy alloy double-leg kickstand that stabilizes the bucket so you can put kids in or load gear, I like how easy it is to roll the bike forward and off of this kickstand when you’re ready to go, it didn’t require a lot of physical effort from me to deploy or retract because of the side bar that you can push down with your foot while balancing the bike
  • If you do opt for the cargo box and child seat accessories, they will be facing backwards and looking up at you vs. forwards on most other products I have seen, this makes it easier to talk and might be preferable for some parents/kids
  • Some cargo bikes use the same sized wheels, which is convenient when you go to replace tires and tubes, but the Packster has a much smaller 20″ front wheel which lowers the cargo weight and shortens the overall length of the bike (the rear 26″ wheel is smaller than the larger Packster models and further reduces length and height), I appreciate that both tires are from Schwalbe and higher quality so they should last longer and get fewer flats because of puncture protection
  • Rather than using a standard 9 mm skewer for the front wheel, the Packster 40 uses a 15 mm thru-axle to improve stiffness and strength, this is perfect for hauling heavier loads (I believe it can handle 350 lbs total and 100 in the front box area)
  • Comfort for you and a second passenger can become a determining factor in how fun it is to ride, so I love that this product has a suspension fork and suspension seat post stock! The smaller front wheel is fitted with a fatter 2.15″ tire to increase air volume and comfort, but smaller wheels tend to fall into cracks vs. spanning them so the suspension fork is a big deal here, even though it’s a more basic spring design without lockout or rebound adjust
  • Rain and wet streets don’t have to interrupt your ride as much because the wide 65 mm fenders and chain cover will keep you dry (especially since the front wheel is way up front) and your cargo/child can stay dry with the optional tarpaulin cover
  • Excellent stopping power thanks to hydraulic disc brakes with an extra-large 203 mm rear rotor and average 160 mm front rotor… the front rotor doesn’t need to be as large because the wheel is so small (it gets a big mechanical advantage), the adjustable-reach levers should be easy to actuate for a wide range of riders who have big or small hands and are stronger or not
  • The belt drive and NuVinci continuously variable transmission (CVT) specced on this specific model are very quiet, clean, and durable, I love that you can shift gear ratios even when the bike is stopped, in case you forget to downshift as you stop for a traffic signal
  • Both wheels are secured with bolts vs. quick release and the bike comes standard with a frame-lock to secure the rear wheel, I love that this lock is from ABUS and comes keyed-alike to the battery locking core, you can order additional ABUS locks keyed-alike using the code that comes with the keys and I would definitely either remove the quick-release seat post collar or always lock the saddle and Thudbuster ST suspension seat post because it’s a bit vulnerable as it is and is a nicer part worth ~$150
  • Both the seat saddle and handlebar height are adjustable, and the mid-step frame is approachable for petite riders, it seems to fit a wide range of body types and I appreciate the sturdy adjustment points and nicer locking grips from Ergon
  • The Bosch Intuvia display panel is one of my favorite systems on the market because it’s easy to interact with while holding the grips (by using the control pad near the left grip) and the LCD is large and easy to read, removable, and has a Micro-USB port built into the right side to maintain your phone or other portable electronics while riding!
  • There are two motor options for the Packster 40 product, I reviewed the standard 20 mph Bosch CX which has eMTB mode and offers the highest torque of 75 Nm, but the Performance Speed motor is also very responsive and capable, it’s a great fit if you want to ride up to ~28 mph but are okay with the lower 63 Nm of torque
  • This pro isn’t as relevant if you get the belt drive and NuVinci, but if you opt for the Touring model with a 10-speed derailleur, the fact that the Bosch motors offer shift detection means that you reduce wear on the chain, sprockets, and derailleur
  • Despite being longer and heavier than most ebikes, the frame felt very stiff and solid (which is important if you upgrade to the Speed motor option), and I noticed that there’s a little top-tube that protects the battery pack from getting kicked when you step over the frame
  • The Bosch Powerpack batteries are widely available, the mount for the 500 is backwards compatible with the older Powerpack 400, it has a handle and LED indicator built in, and the charger puts out 4 Amps vs. just 2 Amps which means you can charge faster
  • The motor controller measures rear wheel speed, pedal cadence, and pedal torque 1,000+ times per second and that makes it feel responsive and controlled vs. some of the cheaper setups that are more of a start/stop and can feel delayed


  • R&M products tend to cost more, not only is this ebike $6,300+ with the NuVinci (or $5,829 if you opt for a 10-speed Shimano Deore) but all of the cool accessories add even more to the price, I was surprised that it doesn’t come stock with the box on the front and that this costs $164 more right off the bat
  • Unlike most other electric bikes I see at shops when traveling for reviews, Riese & Müller ebikes are made to order and seem to take at least one month to arrive once you have confirmed what you want, competing products are usually just for sale as-is on any day you show up
  • Minor gripe here, the suspension fork just has two preload clickers (that must be adjusted to match each other), it would be nice to have lockout and possibly rebound adjustment as well to reduce bouncing or maybe just an easier way to adjust preload so you can quickly make changes when loading and unloading weight?
  • Another minor complaint, the pedals are stiff but not super grippy, the rubberized tread won’t cut you if you slip off but they are more slippery… you can replace these inexpensively with larger Wellgo platform pedals like these
  • All of the Bosch Performance Line motors produce more noise in the highest levels of assist and when you pedal faster… but I love that they offer support up to 120 RPM so you don’t have to shift as frequently to reach different speeds
  • Because the Bosch Performance Line motors use a smaller chainring and rely on a reduction gear to match their 2.5 revolutions to your single crank revolution, there is some friction produced which adds work when pedaling unassisted or above the max assisted speeds, I believe that it offers a mechanical advantage to the motor and improves chain grab
  • Even when the box is empty, there’s a bit of rattling (especially if you have the child seat setup with the belts), I think the plastic fenders can also create some noise when riding over bumpy terrain
  • If you do have a second passenger riding up in the cargo box, just be careful not to graze any walls or railings because there aren’t any extra bars to protect fingers that might be holding onto the sides of the box, maybe tell the passenger to keep their hands inside the box for safety

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