An E-Bike Update

I’ve been experimenting with e-bikes over the past several years, with mixed success.  As an older cyclist I’ve found e-bikes as a way to continue cycling on a regular basis.  While I still prefer to ride my regular bikes, I’ve found it handy to use an e-bike when I’m not quite feeling up to climbing the hills which are part of my daily commute, when it’s too hot for a regular ride, and when it’s too rainy to enjoy a ride.

I remain concerned about the e-bike industry:  toxic consumer waste when low-end e-bikes fail and are too expensive to repair so are dumped instead; unsafe batteries which can catch fire while charging; the environmental devastation of harvesting of rare precious metals needed to build batteries: the billions of pounds of greenhouse gas emissions generated each year by the bicycle industry. This is why, whenever possible, it’s best to bring your old bike back to life and ride it instead of buying new.  However, as an alternative to cars, e-bikes win hands down.

With this in mind, here’s a brief synopsis of my tentative foray into the e-bike world:

Brompton C-Line Electric

Since purchasing the Brompton C-line Electric bike in May of 2022 (think: pandemic), it has been my frenemy of sorts.  The quality of the components and frame are mostly good-to-excellent and it has been 100% reliable.  The fact that it can fold up into a squarish package for easy transport is a plus.  But, its lack of important features, cacophonic drive train, and spine-numbing ride quality make the bike a mixed bag for me.

The 2022 C-line Electric model was built with a 3 speed wide ratio Sturmey Archer hub mated to 13/16T cogs and a 50T chainring, providing a gear inch range of roughly 33-100 with 6 speeds overall.  The 250 watt front hub electric motor provides the propulsion, powered by a 300 watt battery.  Front and rear lights, as well as full coverage fenders, are part of the package. The bike was built on the same steel frame used for all of its models (all of which are folding bikes), except that the fork blades were enhanced to handle the extra torque from the hub motor.  Overall weight is about 38 lbs when using the small battery bag (which holds pretty much nothing else), making it much lighter than most e-bikes.  However, here are some of this bike’s short-comings:

There are no quick release levers on the brake calipers, nor on the levers.  That means deflating the tires in order to install them.  If you are like me, inflating the tire to check the bead seating BEFORE putting it back in the frame is generally a good, and time saving thing to do.  That is not possible with this bike, so if you have just changed out a tube or installed a new tire, it must be inflated AFTER putting it into the frame.

The maintenance on this little bike is also more involved than is typical on a regular bike, and is also needed more frequently due to the drive train’s close proximity to the ground.  The above parts must removed in order to to properly cleaned.  There’s a learning curve as well, as the “chain pusher” and chain tensioner (with its plastic, noisy pulleys) will be unfamiliar to those used to a derailleur-geared bicycle.

The indicator spindle on the Sturmey Archer hub also occasionally works its way loose due to the bumpy ride, so a bit of loctite under the knurled nut is a helpful way of keeping the hub shifter cable tension in the proper position.  The internally geared hub is also much louder than older SA hubs, and has a lot more friction.  I periodically add a few drops of oil to the hub via the indicator spindle opening, which has helped a bit.

The biggest obstacle for me has been this bike’s ride quality.  Obviously, smaller wheels mean less shock absorption.  So, in addition to adding a cushier saddle, I swapped out the harsh riding Schwalbe Marathon’s for these much more comfortable Continental Urban Contact tires.  They absorb more road shock, look much nicer, and have transformed the ride quality from unbearable to tolerable.  With addition of these tires, I’ve been riding the Brompton with more frequency.

Swytch E-bike Conversion Kit

I installed the Swytch e-bike conversion kit on my 1980’s Bridgestone MB-3 back in December of 2023.  The installation was fairly easy, taking only a couple of hours.  I then rode the bike for several months, but then began noticing spoke sounds while braking, indicating loose spokes.  I contacted customer support and was promised a new wheel, which never arrived.  Subsequently I was ghosted by the support rep and never heard from the company again.  While I did re-tension the wheel, I have since stopped riding the bike as configured.  The poor quality of the wheel build, the fact that the system operates more like an on-off switch meaning that I end up using only one gear for most of my riding, and the weight of the battery/controller on the handlebar which affects the bikes’ handling have made it an unenjoyable ride for me.

I’m planning on removing the kit and exploring the idea of using the Bridgestone for a mid-drive conversion which I think will provide a more enjoyable and safer riding experience.  I am a big fan of conversion kits because you use your existing bike (no further CO2 emissions for the manufacture of a new frame), and you already have the correct bike fit dialed in.

Tern HSD Compact Cargo Bike

This spring I had the opportunity to test-ride a Tern HSD cargo bike for several weeks.  It’s an older model (I think 2021?) that a family member was planning on selling.  It’s a one size fits all “lightweight” cargo bike with a Shimano 9 speed drive train and Bosch mid drive motor.

Lightweight the bike is NOT, weighing in at about 60 lbs.  While I have never wanted a cargo bike, I thought it wouldn’t hurt to try one out.  At the time I was thinking about replacing my Brompton with a Tern Vektron which is a folding bike with 20 inch wheels, so I was a little bit familiar with Tern’s model line-up.  

Fit adjustment is made possible by a quasi-recumbent slack seat tube angle, long telescoping seatpost, and clever adjust-on-the-fly stem.  The handlebars are enormously wide, and there are some front shocks which you can lock out to reduce bouncing while getting underway (which I did).  The large diameter rear rack tubes mean that you can really only use Tern’s custom luggage for panniers (hence the rack trunk pictured above).

The riding position is upright, like sitting at a desk, and you really do need all the torque the motor provides to get up steep hills.  I found shifting to be mostly smooth, but sometimes balky when shifting into lower gears for climbing.  This is a common issue with mid-drive motors paired with derailleur type drive trains.  The ride quality is decent, and a bit station-wagon-like in that uninteresting kind of way.  However, the bike was easy to get used to even if not to my liking.  Now I know that a cargo bike is not in my future.

Portland’s Bikeshare E-Bikes-New Model

Portland launched its e-bike bikeshare program (dubbed Biketown in fealty to its original Nike sponsor) in 2020 with just 500 e-bikes.  Now there are 2400 e-bikes in the program which covers 45 square miles.  A newer model was introduced in 2024.

No longer “Nike orange”, the bikes are gray with orange accents and now require no shifting.  The chaincase is fully enclosed, there’s an improved display and what appears to be an even beefier fork.

Having ridden the previous model I will say that while it is nice to not worry about shifting, this model rides more harshly and feels even heavier than its predecessor.  Consequently, I actually prefer to take the bus or walk rather than mounting one of these monsters.  Nonetheless, I do see people riding these, although not as frequently as one would think.  They are ridden much less than e-scooters in Portland (about 1/2 of total rides compared to e-scooters), according to PBOT.

That wraps up my e-bike update.  It’s a mixed bag for sure, but there is no question that the industry is here to stay.

Portland Bikeshare 2.0 – E-bikes!

Many cities have gone to e-bikes for their bikeshare programs, and Portland is one of them.  Its first bikeshare launch several years ago was pretty much a bust, although PBOT and the Biketown folks will certainly never admit this.  Those bikes were clunky, bad handling, heavy, and exceedingly unpleasant to ride.  I used that system exactly 2 times, swearing to never ride them again, and as I love to ride all kinds of bikes, that should tell you something.

In early September, the “old” fleet was decommissioned (not without some controversy), and the new e-bikes hit the streets.  The new system is run by Lyft, which will be a familiar platform for many city dwellers who use ride share.  The launch experienced some unfortunate timing problems:  dangerous wildfire smoke enveloped the city for many days, causing a temporary shut-down of the new bikeshare program, then torrential rains and winds followed shortly thereafter, meaning that no one was biking in Pdx.  But finally, clean air and good weather returned, giving me the opportunity to test out these bikes in Portland’s ideal fall weather.

My first test ride was totally unplanned:  I came across a stable of these bikes on one of my noon walks, and decided spontaneously to hop on and go for a ride.  The process was very easy.  I downloaded the Biketown app, scanned the code on the rear fender, and bam! the bike was unlocked.  Before doing this, I checked all the bikes in this line-up for the one with the best feel on the brake levers and tires, and checked to make sure that the seatpost clamp would hold (something I learned from my prior and limited experience with Portland Bikeshare).  The bikes are tall, and weighty – somewhere between 75 and 85 lbs, according to various web sources.  They feature a front disk brake and rear drum.  The gears (using a continuously variable rear hub) are controlled by a simple grip shifter.  The drive train uses a chain instead of the unpleasant shaft drive on the previous models.  The power is always on, and theoretically delivers juice based on the cadence and force on the crank.  The front and rear lights come on once the bike is underway.  There is a minimal front rack (more on this later), which is (over) rated for 25 lbs.

On my first ride, learning how to unlock the bike wasn’t immediately intuitive.  I tried pulling the cable straight out, but it wouldn’t budge.  Finally I jiggled it a bit and it broke free.  Once out, you put the locking end into the pink “holster” shown above, while riding.  When you are ready to terminate the ride, you park the bike (properly  – more on this later!) and secure it by putting the lock back in place.

The Schwalbe tires were fine, offering some shock absorption, but the bike did bounce around and rattle a quite a bit while underway. The front-end handling of this bike is vastly improved over its predecessor, but even so it wants to fall into corners and is wobbly while getting underway, a fact made much worse by its sit up and beg riding position which doesn’t allow the cyclist to weight the bars for control.  Even so, slowing down while approaching stop lights, I was able to avoid putting a toe down (a long ways down it is!) for the most part, so slow speed handling is not bad for such a heavy machine.  While stopped with your foot down, the bike’s front end will flop over, so you have to actively keep the fork pointed straight ahead it to keep it upright.  The battery is mounted on the sloping downtube, and contains some very simplistic instructions on how to unlock and lock the bike.

The bike’s front rack is too small to hold a standard sized brief case, and the very tight bungee cord supplied will squash your bag and possibly even damage its contents.  Fortunately, I was using my “vegan” brief case which can take extreme abuse, as shown above, and still bounce back to normal.  There’s no bottle cage mount, and the rack itself is shallow.  Riding with a bag, even my lightweight one shown above, adversely affected the handling and made the front end more ponderous than in its unladen condition.  I smooshed my water bottle in, and hoped that it wouldn’t pop out while underway, which fortunately it did not.

Biketown does not provide any technical data regarding these bikes, except perhaps upon request, but I have been able to determine that the rear hub is a Nuvinci continuously variable unit as licensed to Enviolo.  I don’t know what groupset this is, but I did feel that the gear range provided was adequate for the steep hills I encounter on my usual routes.  You move the grip shift forward to lower the gearing, and back to ride in higher gears.  Shifting was seamless, as expected, but power delivery was very uneven.  On uphill stretches, it seems that the motor only responds to a higher cadence rather than to pressure on the cranks, which I found out while trying to get myself up Mt. Tabor.  Pedaling an 85 lbs bike up a steep hill with very little power assist is the stuff of muscle strains, as I found out the next day.  Finally, when I shifted to a REALLY low gear, the power kicked in and I was spinning away to the top.

Braking performance was adequate, but with such a heavy bike it takes longer to stop, so planning ahead is needed when approaching stops.  The rear brake was almost useless, but the front performed reasonably well on the four different journeys I took.  You’ll notice the difference in the feel of the brake levers – they are clearly operating two different kinds of brakes.  I worry about less experienced riders not understanding the extra time needed to slow down, especially in emergency situations, and given that average speeds are much higher on e-bikes.  But, there’s no danger of doing an endo on these machines.

The Biketown app is user friendly and intuitive to use.  When you want to ride, you open up the app and up pops a map of the bikes available in your area.  The app shows battery life (in miles) for any bike you click on, and also shows you the number of minutes estimated to walk to the bike of your choice, which you can reserve in advance if you want.  That, so far, would be completely unnecessary, as virtually no one is currently riding these bikes.  The above shows a recent screen shot taken from my iPhone app.  The map contains no legend, which turned out to be an important omission, potentially costing a lot of money to unsuspecting riders (see more below).

Pricing of rides has been controversial.  For the four rides I took recently, I spent a total of $15.60 and traveled a mere 7 miles.  At 20 cents per minute (without $99 membership fee which lowers the price to 10 cents per minute), I also racked up extra $1 charges whenever I didn’t park the bike at at “station”.  Even though the instructions on the bike say it can be parked at any “public” bike rack, there’s a $1 charge whenever it is not left at a “station”.  The map on my iPhone doesn’t clearly identify stations, but even if it did, parking the bike wherever one ends up is the ideal situation, and I think it’s unfortunate that the Biketown folks decided to tack on this extra charge, as it reduces the bikes’ usefulness as an alternative to other transport modes.

To determine whether you should spring for the $99 annual fee, I created this formula, where X represents the breakeven number of rides and Y = the average number of minutes per ride.  In the formula below, I’ve set Y at 15 minutes, which then yielded 40 rides per year as the breakeven for buying a membership:

(15*.2)*X+(X*1)=99+((15*.1)*x))

My last ride of the four I took on these bikes ended unpleasantly.  I wanted to ride the bike home, and park nearby.  Of course, there are no public racks in Portland’s residential neighborhoods (but clearly there should be).  So, the next best thing was to leave the bike in Mt. Tabor park, locked up to a sign post, but away from the right of way for pedestrians.  As it turns out, I was charged a $25 fee, later waived, for parking in a “no parking zone”.  How do we know it’s a no parking zone?  As I said, there’s no legend on the map, but I finally learned that anything outlined in red is a no parking zone.  So, beware, and study your map closely before locking up.

All of which is counterproductive to the whole idea behind these bikeshare programs. If the goal is to reduce driving, I can’t see that happening with this program, except for maybe the short “last mile” jaunts or quick trips near someone’s workplace.  If the goal is economic justice and greater access to transit for low income populations, these bikes fail on three counts:  stations are non existent along large swaths of north and northeast Portland, the cost is astronomical compared to public transit, and the bikes are not capable of hauling groceries and work tools.  While they do go faster than regular bikes, that efficiency is quickly lost in the time it takes to locate and walk to one of these bikes. The lack of available helmets, combined with the extra speed and ponderous handling characteristics raises safety concerns as well.

I do think that e-bikes represent a great opportunity to get people out of their cars and moving for transit, but I don’t see bikeshare as a way to optimize this.  Someday, I may own an e-bike, and be glad for it, but in the meantime I’m planning on enjoying my vintage, lightweight steel machines, with their wonderful performance and superb handling.

 

 

Portland BikeShare: 2nd Thoughts

Image result for portland oregon 2017 traffic slow down downtown

With the bizarre traffic maelstrom in Portland, Oregon this spring of 2017, anyone trying to get downtown via car, bus, or MAX Train will be in need of some calming medications to manage their enormous frustration.  Meanwhile, bike riders are the sole bearer of efficient transportation via Portland’s streets which are clogged with construction, lane closures, light rail track repairs, bridge anomalies, and highway shutdowns.

Nike “swoosh” on Portland’s Bikeshare logo

You would think this would mean that enterprising commuters would seek out alternative methods of arriving at their respective destinations, and that they might consider using Portland’s Nike funded “BIKETOWN” bikesharing program.  Think again.

Never have more clunky bikes been pawned off on the public.  These machines feature massive wheel flop (disastrous for bikes designed for a front end load), a 45 lb weight, and, worst of all, a sit up and beg riding position that makes only very tall riders able to master these bikes with relative safety.  I have ridden these bikes exactly 3 times, and hope to never ride one again.  And, that’s me – I love to cycle!  What is wrong with these bikes?  Just about everything.

In fact, my Dad’s 1965 2 speed Schwinn American would be a far more comfortable and efficient choice for anyone seeking passage through Portland’s beleaguered streets.  The riding position on this bike is adaptable to many cyclist’s sizes, and its geometry and excellent bullet proof steel construction means that it has lasted through decades of abuse and neglect.  The handling on this Schwinn is intuitive.  You just get on and ride.

Not true with these BikeTown bikes which were built by SoBi.  One commentator has this to say about these bikes:  “These clunky SoBi Social Bicycles look like they weigh a ton, and have the maneuverability of a circus elephant. With the ongoing costs, invasion of privacy and potential liability on the user’s end – you might want to consider alternatives.” – Hobeken 411.

Indeed, one thing that Portlanders noted right away was SoBi’s demand that users of its system waive their legal rights.   This is yet another reason to re-think whether or not you want to attempt to ride one of these machines.

Image result for brompton bicycle

Brompton Folding Bike

I am a strong supporter of public transportation as a “public good”, and I also support bike share programs as part of the solution to many of the challenges facing urban environments.  I served on TriMet’s budget advisory committee for years, and count public transportation advocates as friends and colleagues.  In short, I am the last person you would expect to criticize Portland’s Bikeshare program.  The problem with the program lies not in its conception, but in its execution.  I would love to see a bike share program designed around user friendly bikes, such as this Brompton folder, pictured above.  Interestingly, Portland’s Brompton retailer – Clever Cycles – offers Brompton rentals. I might try this out!

Obviously, any bikes which are to be used for bikeshare need extra technology and engineering, but there is no reason that should come as a sacrifice to ride-ability.  Having observed numerous riders attempting to master BikeTown SoBi bikes, and seeing their consternation I think its time for Portland to throw in the towel on SoBi, and re-think the Bikeshare program.  We need to offer bikes to all kinds of riders, not just to tall and fit riders who can physically overcome the poorly designed weaknesses of SoBi’s offering.