Douglas Ruby
Well-Known Member
- Region
- USA
- City
- Groton
I haven't posted in quite some time and thought I'd share some summary experiences. I turned 1700 miles on a ride today. This is 250 miles in late 2015, 1050 miles in 2016, and 400 miles so far in 2017. My riding is all recreational on rolling country roads and the Nashua River Rail Trail in MA and NH.
My Turbo has the original 200W motor of the base model, but has a number of performance upgrades. I am using 700x35C low rolling resistance Michelin tires and the same 11 speed gearing and 691Wh battery as a Turbo S. Top assist speed is 42 kmh (26.2 mph). I also have upgraded brake pads, added fenders/rack, and made a number of ergonomic changes to the seatpost and bars.
All in all, my Turbo has been a great experience and excels at road cruising in the 15-20 mph average speed range. Strengths include:
My Turbo has the original 200W motor of the base model, but has a number of performance upgrades. I am using 700x35C low rolling resistance Michelin tires and the same 11 speed gearing and 691Wh battery as a Turbo S. Top assist speed is 42 kmh (26.2 mph). I also have upgraded brake pads, added fenders/rack, and made a number of ergonomic changes to the seatpost and bars.
All in all, my Turbo has been a great experience and excels at road cruising in the 15-20 mph average speed range. Strengths include:
- The full 200W assist helps in climbs though I am sure it is not as effective as a good mid-motor setup like Bosch or Brose. It is best at cruising in the 20-24 mph range.
- With full TURBO assist, I can average around 20 mph even though I am 235 lbs, 66 yrs old, and suffered a major heart attack 17 yrs ago. Any average speed above 20 mph is really hard. I am a "100W rider" who averages 13-15 mph on my regular road bike. Using full TURBO allows me to average 250+W watts over longer distance at much higher speeds.
- With the larger battery, range is fantastic. I have no issues getting 40 miles at full TURBO assist. Today, I did a 17.2 mile ride at 20 mph and used just 40% of my 691Wh battery. I have ridden 60 miles in a single ride at ECO60/70 with full TURBO on hills.
- The various ECO levels (20% - 70%) scale linearly. If I use ECO50, I can go twice the distance as running full TURBO. Running at ECO40 allows me to ride at the same speed as my daughter for distances over 80 miles with no range anxiety at all.
- With my Garmin Edge 1000, I can "ride to my heart rate". I can use real time heart rate monitoring, cadence, and varying the assist levels to keep my heart rate in bounds for high levels of aerobic exercise over long periods of time. I try to keep my cadence above 80 rpm (typical 85 rpm average) and below 100 rpm. With my BP meds, my heart rate wants to be between 100-110 bpm. If I find my heart rate going too high, I can hit the TURBO button or raise the ECO level in order to make things a bit easier (assuming I am not already running flat out).
- Even with a Thudbuster ST and Ergon grips, this is one HARD riding bicycle. My tire choice makes it more so. My 1971 Reynolds 531 racing bike is more comfortable! My next bike will definitely have a suspended fork and a better seatpost.
- The handlebar controls of the 1st generation Turbo are just not good. The "Clean Cockpit" design has minimal information, the joystick and backlight fail often, and the unit is hard to see. I have augmented my handlebar displays by using a Garmin Edge 1000. I also have an old Trek bike computer for backup.
- Between the disc brake, the torque arm, the weight of the wheel, and having to pull and/or insert the axle, service requiring removal of the rear wheel for any reason at all is a PITA. This is inherent in DD rear hub designs which are heavier and require some form of torque arm to deliver their power. The rear wheel tends to break spokes, too.
- Power corrupts. While the full 200W assist is great and allows me to exceed 20mph on the level easily, an average of 20 mph over distance is HARD to maintain. Further, I really have to use all of my gears when climbing. Even at full TURBO setting, it is not unusual to slow down to 7-9mph in low gear (48T-42T). I find myself wishing for a Turbo S (500W) rear wheel fairly frequently.
- The "controller and firmware" in the battery design of the bike is not good. While it may offer advantages over the "controller in the hub" design of some DD rear hub bikes (Stromer ST1), battery failures and firmware upgrades have been an issue.
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