For the 29" VelectriX Ascent, this Santroll 36 V, 15 A controller manages power from the battery to the motor. It uses the UART communication protocol and carries model number WZKD3615KA-MTB9-F4.

  • 29" Ascent set-up – programmed for the Ascent and its 29" wheels.
  • UART protocol – as VelectriX specifies for this controller.
  • 36 V, 15 A – matched to the bike's 36 V system.
  • Genuine VelectriX part – part code VXAUS10314.

Wheel size counts

VelectriX makes separate Ascent controllers for 29" and 27.5" wheels. Wheel size is part of the set-up, so the wrong unit can misread your speed and shift where the 25 km/h assist cuts out.

Fit and compatibility

Suits the 29" VelectriX Ascent only, not the Ascent Pulse X. The 27.5" Ascent takes VXAUS10556. Check the model number on your existing controller before ordering, particularly on a late-model Ascent 29, or ask Tune.

Tune can fit it and check the assist works through every level.

VelectriX warranty. 2 years against manufacturing defects in materials and workmanship (motor, battery and motor controller). The warranty covers the original purchaser of a product bought through an authorised VelectriX dealer (Tune Cycles is one), with proof of purchase. Claims go through the dealer you bought from.

  • Santroll controller, 36 V, 15 A
  • Model number WZKD3615KA-MTB9-F4
  • UART protocol
  • For the VelectriX Ascent with 29" wheels
  • Excludes the Ascent Pulse X
MakerSantroll
Voltage36 V
Current15 A
Model numberWZKD3615KA-MTB9-F4
ProtocolUART
Wheel size29"
FitsVelectriX Ascent 29" (excluding Ascent Pulse X)
VelectriX part codeVXAUS10314
SKU VLX-VXAUS10314
Brand VelectriX
Shipping Weight 0.4000kg
Shipping Width 0.120m
Shipping Height 0.080m
Shipping Length 0.220m

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