Giant Twist Esprit Double Ladies 26v Li-on Battery 2011 Model

I bought a Giant CS-Twist Freedom from Powered Bicycles in Long Eaton two months ago. I did so because I had taken a new job 20 miles from where I live and didn`t want to have to buy and run a car, or sit in traffic everyday. I told the team at Powered Bicycles my requirements and they recommended the CS-Twist Freedom as a heavy duty performer. Two months and 800 miles later it has turned out to be a very wise decision, keeping me fit, saving me money and allowing me to continue a low carbon lifestyle despite the new commute. The bike is a reliable work horse - you can really load it up like a pack mule - and a joy to ride. There aren`t many hills between where I live and where I work but the route is a bit of a wind swept plain. That`s the real benefit for me of an ebike over a normal bike - it takes the sting right out of headwinds.

Cheers!

Ian

Love it!!
Use to bike to work approximately 6 miles each way, great to be the one overtaking other cyclists and not the one being left behind!
Afraid, I`m a bit of a snob and had the paniers as well to hide the battery, so it`s not so obvious that I`m on a electric bike !!!

Brilliant for anyone with "dodgy" knees like myself, also if you don`t get much excercise, it`s another way of doing some, but not over exerting yourself, you can exert as much or as little as you like by using the different settings and you can also ride without the motor. The bike has 3 electric gears and 7 cycle settings, so there is a setting to suit everyone. Easy to charge too. Love it, love it love it.

I bought my Giant RS2 Twist 12 months ago. It has changed my life. I now cycle every day no hill is daunting. I admit to not looking after the bike much and in spite of that it gives me no trouble at all. poweredbicycles are always helpful and happily check it over occasionally. Its sturdy, reliable, effective and greatly admired wherever i go.

"Attention aspiring eco commuters and those who crave the fun of cycling without the
work: Modern electric bikes are here and they're breaking away from the peleton in a
serious bid to win your lazy affections."
USA magazine Wired – a publication that reports on how technology affects culture, the
economy, and politics recently rated four "electric" bikes, and Giant came out on top
again!
Jackson Lynch at Wired reviewed the Twist Freedom DX for the November 2008 online
version of the magazine. Now, in the March 09 print issue, Jackson stacks up the Giant
Hybrid Cycling Technology bicycle against three other machines, and he puts the Twist
on top, giving it a 9 out of perfect-10 rating.
"…unlike jerky old-school electrics, this rig is smoooooth, with three power modes and
seven gears for sweat-free riding over most terrain."
He finished by giving the Twist the "Wired/Tired" treatment
"WIRED: Stylish. Hits US-mandated max of 20 mph. Comfy ride courtesy of cushy grips
plus fork and seat-post suspension. Internal rear-hub gearing impervious to mud and
sloppy weather. TIRED: Haven't found anything so we'll keep riding and let you

For the past 8 years I have regularly commuted to work via bicycle. When possible I`ll also leave the car in the garage and use my bike to run short errands. Of course living in an area with hilly terrain means lots of huffing and puffing, lots of gear shifts, and a decent amount of sweat. The side benefit is I get some much needed and regular exercise. (We`ll discount the occasional trip to the ER from dramatic wipeouts at speed.)

Weather is the biggest limiting factor. Too hot and too cold and the bike stays home. Same for rain and snow. Hot days are the worst since I can`t afford to arrive at the office all hot and sweaty and stinky. For some reason my coworkers aren`t too happy about it. There also are days when the day seemed to last too long and my legs are lead weights on the ride home. Throw in a headwind (why is it always a headwind and never a tailwind) and the ride can be miserable.

For this reason I was looking for a second bike to throw into the arsenal, one of those new-fangled electric hybrid bikes that require pedal effort to engage the electric motor. Giant Bicycles built several such models but they always were discontinued after what seemed like a short production run. Their latest entry into the hybrid electric market is the Twist Freedom DX.

The Twist DX features twin Li-ion batteries, a 250 watt front hub motor, 7 speed hub shifter, and a claimed range of up to 75 miles with a rider of perfect BMI, flat roads, temps in the range 60-75F, and no wind. I wanted to know how such a beast would behave in the more `real` world: semi-hilly terrain, a rider and backpack combined weight close to 215 pounds, fall temperatures, and throw in a nasty headwind every now and then.

Unfortunately it seems the only on-line review I could find was from May 2008 by Popular Mechanics. Unfortunately a late spring ride in flat Central Park in New York City did not satisfy my criteria for a good review. Not to knok the fine folks at PM, but they just did not test it in `my` conditions.

So one day I received a phone call from shop owner at The Bicycle Shop. shop owner knew I was interested in the Twist so he was kind enough to loan it to me for test dive. I just hope he hasn`t sold my regular bike waiting for the hybrid to come back home!

I rode the bike for a quite a few miles to drain one of the batteries down, fully charge it, and run it again until the battery drained so I could get an estimate of range and power required to charge it back up. I also wanted to see if it was as `un-bike like` as the PM review made the experience out to be.

So let`s start with the good:

Power is great! At any time you can be in any 4 of the 7 speeds of the hub shifter. I could accelerate strongly even in high gear, trading range as the motor had to work harder. On my commute home a hill that normally takes me 11 minutes to climb blew by in only 7. I was not pedaling as hard as on my regular non-electric bike but I was still getting a good workout although not as vigorous. You still have to supply some of the motive power. One evening there was a stiff headwind. Not only did I still make good time I arrived at home not feeling all beat up by the wind.

Now for the not so good:

Hill climbing power is good but definitely gave up a few mph. It is certainly not insufficient power and was an acceptable tradeoff. Hoever, pull a lot of hills in the Twist DX`s Sport mode and watch the battery drains FAST. Use `Normal` mode and they still drain pretty quick although not at as rapid a rate. The geek in me wishes there were an ammeter to monitor how much power was going to the motor.

As a commuter I have a backpack with a heavy laptop computer and lots of paperwork. Being slightly overweight myself the Twist DX had a lot of stuff to pull up that hill. I could see right away we were not going to get anywhere near the 75 mile range (`Eco` mode in flat terrain), which of course I did not realistically expect, but I was hoping to get closer to the rated specs for `moderate hill`. I doubt I could climb PA26 from Pine Grove Mills to Joe Hayes Vista on a single charge (it is one heck of a climb).

I expect the range to get slightly better as the battery packs get conditioned by having a few charge cycles on them but currently have no way to scientifically validate that. I should also point out that temperatures were in the range 40-50 degrees F during my rides and the cold does affect that state of charge somewhat. Overall my range was more in the range of the `steep hill` part of the range chart Giant supplies rather than `moderate hill`. A re-review after a change to a warmer season and a few charge cycles on the packs should verify the above hypothesis. At the very least with current observations we have a measured range performed under less than ideal conditions and much closer to real world (or at least real world Happy Valley).

And now, the rest of the story:

I drained one of the two battery packs in appx. 18 miles. In those 18 miles there were some good hills to climb. The Twist DX and I blew past riders struggling in low gear, who watched in amazement as we went by at what seemed like light speed. Miles were mostly accumulated in the DX`s `Normal` power setting although a few hill climbs were conducted in the `Sport` setting to see how fast I could get up the hill.

At the end of each of my 3 mile legs I always felt like I wanted to ride more. Even after a long day in the office with leaden legs the Twist DX made the ride a pleasure. Even at the end of the battery`s charge the motor still pulled strong, losing power in probably the last minute or so of the charge cycle. I don`t know if Giant fully depletes the battery or simply cuts it off at some lower level.

Range anxiety is mitigated by having the second power pack to switch to when the first depletes. When the `Right` battery went down to 0 and cut off, I simply flipped the selector to `Left` and was happily using the power assist once again.

With he battery depleted I hook the charger up to a power monitor to see how much electricity it would require to fully charge. The charger drew a measured 62 watts and consumed .26 kWh to charge the pack. At $.09/kWh, this translate to a smidge over $.02 electricity for 18 miles or an astounding $0.0013 / mile. It costs more than that just to start mt car!

Random thoughts:

Clearly set up as a single model for both the US and European markets, the charger comes with a European power plug and a dongle to convert said plug to a standard 3 prong one. I don`t mind but dongles can be easily lost if not careful.