The ERider-T17N is a bottom-bracket torque sensor and crankset for 68mm shells. Its cable exits the side of the cartridge, so there's no drilling through your frame. It measures both left and right pedal torque for a smooth, responsive PAS, and its quadrature cadence signal supports CA3 back-pedal sensing for regen braking where applicable.

Specs:

• Fits 68mm bottom-bracket shells · 4-bolt 104mm spider
• Includes 0 Q-factor 170mm crank arms (chainrings not included — reuse your originals)
• Side cable exit — no frame drilling
• 18-pole, 2-wire cadence sensor
• 1.5–3.5V torque output, 70 Nm/V scaling
• 90cm cable, JST-SM connector — plug-and-play with the V3 Cycle Analyst

Note: the latest 4-bolt 104mm spider no longer fits 68mm BCD chainrings (limited older stock — ask us). Some ERider setups can get intermittent cutout from controller electrical noise, solved by grounding the frame.