Wednesday, November 24, 2021

The evolving Plan to build a New Touring e-Bike

The Plan:

Start with the Stock Surly Ogre Bike

Large Frame size.


Dedicated Rohloff cable routing and mount for OEM 2 axle plate

Dedicated Surly Trailer mounts

Rear Dropout Configuration:
Horizontal slotted with optional vertical dumpout

Chainstay Length 440 


  • HeadsetCane Creek 40
  • BrakesTektro HD-M275
  • Brake LeversTektro HD-M275
  • RotorsTektro 160/160mm
  • ShiftersShimano Deore M6000 
  • StemProMax 31.8, 4 bolt
  • HandlebarSalsa Bend
  • Grip/TapeVelo Lock-on
  • SaddleWTB Volt Sport
  • SeatpostProMax 27.2, 300L, offset or PNW Coast Suspension Dropper

Stock Drivetrain:
(To be replaced with 750w BBS02 Bafang Mid Drive Motor- This will replace front and rear drivetrain)

  • CranksetSRAM NX 32T
  • Bottom BracketSRAM Powerspline
  • Front Derailleur N/A
  • Rear Derailleur Shimano Deore RD-M6000
  • Cog or cogset Microshift 10 spd, 11-42t
  • Chain KMC x10


  • Front HubNovatec 32h QR
  • Rear HubNovatec 32h, Thru axle
  • RimsWTB i29 Black
  • Tires Surly Extra Terrestrial 29x2.5” 60TPI Slate-wall Tubeless Ready

Replacement Parts (with stock items being stored for possible swap)

  • Handlebar: Jeff Jones Loop Bar
  • Shifter: Rohloff
  • Grips: Ergon GP1 for Rohloff
  • Saddle: Brooks Flyer 

New Rear Wheel Build:

  • Rim: WTB i29 Black (to match Front Stock)
  • Lacing Pattern: standard Rohloff wheelset
  • Spokes: Sapim Force triple butted
  • Nipples: Sapim Brass
  • Rohloff SPEEDHUB 500/14
  • Rotor Tektro 160/160mm (to match front)
  • Tires: Schwalbe Evolution TLE Almotion

BBS02 Bafang Mid Drive Motor KIT

  • Newest 750w BBS02 Bafang Mid Drive Motor (version B)
  • Upgraded Integrated 25amp Controller with 9 IRFB3077 MOSFETs
  • LCD Display (C961 Display)
  • E-brake Sensors (connects to existing brakes)
  • Chain Ring & Cover 48T
  • Crank Arms
  • Left Thumb Throttle
  • Speed Sensor with Spoke Magnet
  • Main Wiring Harness (wiring that connects all the kit components)
  • Gear Sensor Plug coming out of controller
  • Battery(s) Charger

Mid-Drive installation Additional

  • Pedals: Crankbrothers Stamp Flat BMX/MTB Bike Pedal
  • Luna-Tick Crankset for Mid Drives
  • LUNA Wrench BBSHD and BBS02 Mid Drive Installation Tool

To be determined:



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