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Mid-drive with Rohloff rear hub?

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Mid-drive with Rohloff rear hub?

Old 01-21-21, 12:28 PM
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cat0020
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Question Mid-drive with Rohloff rear hub?

Are there many mid-drive e-bike riders using internal 14-speed Rohloff rear hub?

Any extra wear to the Rohloff transmission or chain when combined human pedal power & electric mid-drive motor?

How does extra weight of Rohloff rear hub/wheel compare with a hub-motor rear wheel?
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Old 01-21-21, 12:45 PM
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It won't be cheap. But it's been done. Torque at the drop outs would be something to be considered to ensure you make a smart product choice. OEM Rohloff frames have a lug for the reaction arm as part of the dropout. Non-OEM hubs for retrofit have a reaction arn that clamps to the chainstay.

Also the proper shifting configuration for your frame should be considered. Some OEM frames have dual cable stops, others are designed around full cable housing run to hub, etc...

Rohloff blog post.
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Old 01-22-21, 08:43 AM
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I have not seen the Tern GSD R14, in real life, but it is an example of a mid-drive with Rohloff. I think it lists for $ 8400 USD and is available for pre-order.
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Old 01-22-21, 09:58 AM
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That some serious chunk of $$.. can get some really nice motorcycle(s) for that $$.
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Old 01-22-21, 10:22 AM
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The rear hub is in the $1500 vicinity. I think Luna has/had a model in the $5000 - $6000 range with a BBSHD plus Rohloff upgrade.
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Old 01-22-21, 09:05 PM
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Yes I generally sell mostly Rohloff equipped R+Ms to folks once they understand the benefits and ride the dang thing it is a hard thing not to want. However any mechanical shifting IGH is off the table for me. The E-14 is awesome but I didn't love regular Rohloff on an e-bike or Alfine or Nexus they are fine hubs but when you have to stop pedaling shift and start pedaling you have lost me.

It is an expensive system but it works and it works well with pretty few problems. We have had a couple occasions with issues but compared to most everything else not many and nothing really to do with the Rohloff hub just the E-14 and that was 2 out of 100+

A nice Bosch bike with a Rohloff E-14 and belt and you are pretty well set. This is my more attainable dream (with a few different cockpit parts): https://www.r-m.de/en-us/bikes/super...466_0804022629

I might also upgrade to a Fox fork and add some improved lights because I am not one for stock bikes and a Bosch e-bike is tough to get as just a frame and the e-bike gubbins and the custom manufacturers can't do the cleaner look of the integrated dual batteries and while 1000wh is plenty I want the 1250 for long trips and to tow a trailer.
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Old 02-16-21, 08:01 AM
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How many units of Rohloff hub equipped ebikes do you sell vs regular geared or mid-drive ebikes?

Where is your shop located?
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Old 02-16-21, 08:09 AM
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They even came out with a electronic shifting model that will link with a bosch.
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Old 02-16-21, 08:54 AM
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I have an e bike on the drawing boards that I intend to build within the next couple years that uses a Rohloff hub. Many bikes have been built this way and it seems to be a good solid system.
The intended purpose of my build would be to obtain a comfortable very long distance remote fat touring bike. I have priced it out at between $8,500 and $11,200 depending on what I decide on. Would start with a big titanium cargo frame purpose built with Bafang M620 drive and Phase Runner MT-CA3 controls. 2.9Kwh to 4.2Kwh 52 volt system. Mastodon Fork. Very strong alloy wheels, Jone's Ti riser bars, Infinity Saddle, Thompson dropper, Full fenders/lights, Ortilieb bags. The price varies because of the possibility of going with a more conventional drive train and add-ons like reverse cycle climate control and an Xtra wheel mate type trailer. In short, the ultimate touring bike.
Priorities in the wrong place. Maybe, I drive a 2wd, 2011 Ford Ranger XLT 4 banger stick shift.
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Old 02-16-21, 11:51 AM
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Sounds like an interesting build, upright or recumbent? Recumbent would be better for comfort over long distance.

Nothing wrong with putting your priorities in 2-wheel vehicles. I drive a 2wd 1998 Mazda B2300 auto, with 362k mi. on odometer, still OEM engine & tranny.
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Old 02-16-21, 12:17 PM
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Originally Posted by cat0020 View Post
Sounds like an interesting build, upright or recumbent? Recumbent would be better for comfort over long distance.

Nothing wrong with putting your priorities in 2-wheel vehicles. I drive a 2wd 1998 Mazda B2300 auto, with 362k mi. on odometer, still OEM engine & tranny.
Upright, cant' stand the position of a recumbent, especially in traffic. the Infinity saddle is very comfortable.
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Old 02-16-21, 12:41 PM
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IME, after riding 30+ year of upright & 16+ years recumebent; no saddle is comfortable for extra long distance.

Is your build going to have a cargo frame like any below?



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Old 02-16-21, 01:47 PM
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Originally Posted by cat0020 View Post
IME, after riding 30+ year of upright & 16+ years recumebent; no saddle is comfortable for extra long distance.

Is your build going to have a cargo frame like any below?
The cargo frame that I want is more traditional with panniers front and rear. A big battery will set behind the seat post and ahead of the rear wheel.

The Infinity saddle is the only saddle I have ever sat on that gets more comfortable the longer you sit on it. I often drop the seat post, put my feet on the ground and stay on the saddle for breaks.
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