PAS/Torque Sensors

The Torque Sensors are used in conjuction with a V3 Cycle Analyst in order to both show how many watts you are putting into the system via pedal effort, and to provide torque proportional motor assistance.

The TDCM bottom bracket has 12 pole cadence sensor as well as a 2.5-3.3V voltage output that is proportional to the chain tension on the crank, and works great when you are after a responsive pedalec mode without concern of the exact human watts. 

The installation guide for the TDCM is available here.

The THUN sensor has an 8-pole cadence sensor and measures the actual torque across the spindle. It gives the most accurate human power statistics but it only senses the left pedal force, so there can be some delay in pedalec assistance if you start from a standstill pushing on the right crank.

The installation guide for the THUN sensor is available here.

Each option is available in a range of spindle lengths and have a JIS square taper for the cranks. It is usually no problem if the spindle is a few mm longer or shorter than the one being replaced. Both options require access to bottom bracket tools and drilling a cable hole through the BB shell for installation, though the THUN is somewhat easier to install.  

 

15 Item(s)

Grid  List 

Set Descending Direction
  • BEAMts Cable Tension Sensor for Making Torque Assist Ebikes

    BeamTS

    US$159.00
    BEAMts Pedal Assist Sensor, Direct Throttle Plug
  • ISIS_128

    ISIS_128

    US$240.00

    Out Of Stock

    NCTE ISIS Splined Torque Sensing Bottom Bracket 128mm Spindle Length
  • PAS_12P

    PAS_12P

    US$24.00
    CA3 Compatible Quadrature PAS Sensor, with Split 12 Magnet Ring for Square Taper Spindle Mount
  • PAS_12P_Chr

    PAS_12P_Chr

    US$24.00
    CA3 Compatible Quadrature PAS Sensor, with Split 12 Magnet Ring for Chainring Mount. Must have Steel Chainring bolts. For 74mm 5 Bbolt and 64mm 4 Bolt Cranksets.
  • Silver Patterson Crankset with 12 Pole PAS Sensor and 39T Chainring Mod

    Patterson165

    US$375.00
    Silver Patterson 2 Speed Freewheeling Crankset Modded with PAS Sensor and 39T Chainring. 165mm Crank Length
  • Black Patterson Crankset with 12 Pole PAS Sensor and 39T Chainring Mod

    Patterson165_B

    US$375.00
    Black Patterson 2 Speed Freewheeling Crankset Modded with PAS Sensor and 39T Chainring. 165mm Crank Length
  • Silver Patterson Crankset with 12 Pole PAS Sensor and 39T Chainring Mod

    Patterson175

    US$375.00
    Silver Patterson 2 Speed Freewheeling Crankset Modded with PAS Sensor and 39T Chainring. 175mm Crank Length
  • StrainAmp

    StrainAmp

    US$40.00

    Out Of Stock

    Strain Gauge Amplifier Board and PAS Connection from RSD Stokemonkey System. Available for DIY Strain Sensor Projects
  • TDCM_114

    TDCM_114

    US$145.00
    TDCM Torque Sensing Bottom Bracket, CA3 Compatible. 114mm Spindle
  • TDCM_120

    TDCM_120

    US$145.00
    TDCM Torque Sensing Bottom Bracket, CA3 Compatible. 120mm Spindle
  • TDCM_128

    TDCM_128

    US$145.00
    TDCM Torque Sensing Bottom Bracket, CA3 Compatible. 128mm Spindle
  • THUN_120K

    THUN_120K

    US$240.00
    Thun X-CELL RT Torque Sensor, 120K/116mm Spindle, incl. Cable and Connector for CA3
  • THUN_120L

    THUN_120L

    US$240.00
    Thun X-CELL RT Torque Sensor, 120L/119mm Spindle, incl. Cable and Connector for CA3
  • THUN_128L

    THUN_128L

    US$240.00
    Thun X-CELL RT Torque Sensor, 128mm Spindle, incl. Cable and Connector for CA3
  • THUN_136L

    THUN_136L

    US$240.00

    Out Of Stock

    Thun X-CELL RT Torque Sensor, 136 mm Spindle, incl. Cable and Connector for CA3

15 Item(s)

Grid  List 

Set Descending Direction