Go Back  Bike Forums > Bike Forums > Electric Bikes
Reload this Page >

Looking for info on internal geared hubs with mid drive

Notices
Electric Bikes Here's a place to discuss ebikes, from home grown to high-tech.

Looking for info on internal geared hubs with mid drive

Old 06-29-20, 08:21 AM
  #1  
Metal Man
Senior Member
Thread Starter
 
Join Date: Nov 2008
Posts: 351
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
Looking for info on internal geared hubs with mid drive

I have a Big Dummy with a Bafang mid drive and 7 speed rear cassette . I would like to change it to an internal geared hub, but I'm just not sure about what I'll end up with for gearing. I'm looking at Shimano eight speeds but open to whatever will work for me. I currently have a 48T front and the rear cassette is 11-28T. I would like to end up with something very similar for gearing. Any help would be great. Is there a shop that is knowledgeable on these and that can supply a wheel all ready to go?
Metal Man is offline  
Old 06-29-20, 10:28 AM
  #2  
2old
Senior Member
 
Join Date: Jul 2014
Location: socal
Posts: 2,135
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 355 Post(s)
Liked 121 Times in 87 Posts
You might contact Soul Beach Cruisers in AZ. They produce a BBSHD cruiser with 3-speed Sturmey Archer hub, which won't provide the gearing range you specify, but might help. I think Reisse and Muller have/had a mid-drive with 14-speed Rohloff (great gearing range of 543% or so and reportedly bulletproof) and Luna produced a mid-Rohloff bike. Also electric-bike-blog has some info on the mid-IGH experience.
2old is offline  
Old 06-30-20, 10:34 AM
  #3  
Robert C
Senior Member
 
Robert C's Avatar
 
Join Date: Sep 2006
Location: Kansas
Posts: 2,153

Bikes: This list got too long: several ‘bents, an urban utility e-bike, and a dahon D7 that my daughter has absconded with.

Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 323 Post(s)
Liked 10 Times in 10 Posts
This article is from 2016, however, it remains a very good starting point. I am a big fan of the NuVinci transmissions. I have commuted extensively on an N360 and toured on an N380 coupled with a BaFang Mid-Drive. I am in the process of building a touring velomobile that will also rely on a NuVinci N380 and a BaFang BBS02

Last edited by Robert C; 06-30-20 at 01:56 PM.
Robert C is offline  
Old 06-30-20, 11:16 AM
  #4  
Dewey101
Senior Member
 
Join Date: Sep 2016
Location: Arlington, VA
Posts: 88

Bikes: '73 Raleigh Sports; 2017 Breezer Downtown 8 ST converted to ebike

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 24 Post(s)
Liked 3 Times in 3 Posts
Since that article both Sturmey & Shimano have released 5 speed IGH models for ebikes. Reportedly the Sturmey didn’t work on the Luna Babe, so you might like to explore the Shimano Nexus Inter-5E, first gear is the direct drive so no granny gears, but if you have a 750w motor you should be fine
Dewey101 is offline  
Old 07-01-20, 12:44 PM
  #5  
Metal Man
Senior Member
Thread Starter
 
Join Date: Nov 2008
Posts: 351
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
Being a cargo bike and in a hilly area I need my granny gears.
Metal Man is offline  
Old 07-01-20, 01:00 PM
  #6  
Dewey101
Senior Member
 
Join Date: Sep 2016
Location: Arlington, VA
Posts: 88

Bikes: '73 Raleigh Sports; 2017 Breezer Downtown 8 ST converted to ebike

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 24 Post(s)
Liked 3 Times in 3 Posts
Originally Posted by Metal Man View Post
Being a cargo bike and in a hilly area I need my granny gears.
I also live in a hilly area which is why I went with the Nexus 8 on my 350w BBS01
Dewey101 is offline  
Old 07-01-20, 01:48 PM
  #7  
Metal Man
Senior Member
Thread Starter
 
Join Date: Nov 2008
Posts: 351
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
Originally Posted by Dewey101 View Post
I also live in a hilly area which is why I went with the Nexus 8 on my 350w BBS01
Do you have any input as to how that would compare with my current gearing? 48T front and the rear cassette is 11-28T , 26" wheel BTW.
Metal Man is offline  
Old 07-01-20, 07:30 PM
  #8  
2old
Senior Member
 
Join Date: Jul 2014
Location: socal
Posts: 2,135
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 355 Post(s)
Liked 121 Times in 87 Posts
The Alfine "8" has 307%; looks like your 11 - 28 is 255.
2old is offline  
Old 07-02-20, 07:10 PM
  #9  
Metal Man
Senior Member
Thread Starter
 
Join Date: Nov 2008
Posts: 351
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
And which gear is the direct drive for the Alfine 8?
Metal Man is offline  
Old 07-03-20, 09:16 AM
  #10  
2old
Senior Member
 
Join Date: Jul 2014
Location: socal
Posts: 2,135
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 355 Post(s)
Liked 121 Times in 87 Posts
Check Sheldon Brown; might be listed there. I read somewhere (maybe electric-bike-blog) that the "8" wasn't robust enough for "e". If you can live with 186%, the Nexus 3 seems strong with the direct drive gear in the middle AFAIK.
2old is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information

Copyright © 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.