Description
TriSpark Classic Twin Electronic Ignition — 12V Universal Fit for Triumph, BSA & Norton
Stop chasing timing drift and unexpected roadside failures. The TriSpark Classic Twin is a direct, universal electronic ignition replacement for British unit twins and singles — one part fits all applications, regardless of engine rotation. No variants to sort out, no guesswork on ordering.
Updated April 2022, this is TriSpark's upgraded design that supersedes the earlier rotation-specific A and B units. One SKU covers the full range.
Why Riders Make the Switch:
- Universal fit — covers both clockwise and anticlockwise engine rotations
- No external black box — clean, compact installation
- Eliminates kickback on starting
- Built-in LED timing indicator and self-test mode for precise setup
- Zero maintenance after installation
- 12-volt system, positive or negative earth/ground compatible
What's Included:
- TriSpark stator unit (replaces points plate)
- TriSpark trigger rotor (replaces auto advance unit and points cam)
- 12-page illustrated installation booklet
- Wiring terminals and hardware
Compatible Models:
Triumph Unit Twins: T100, T120, TR6, TR7RV, T140 Bonneville, Tiger, Daytona and related models Norton: Atlas, Commando 1968, Commando 1969–1975 BSA Unit Twins: A50, A65, B50 BSA Singles: B25, B40, B44 and related Triumph Singles: Tiger Cub Royal Enfield: Interceptor
Coil Requirement: Two 6-volt coils wired in series are required for twins. Using incorrect coils can damage the unit. JRC stocks the correct TriSpark-recommended coils — contact us if you need assistance selecting the right setup for your application.
Specifications:
- Voltage: 12V
- Earth: Positive or negative ground
- Supersedes: TriSpark A and B rotation-specific units
- Part numbers: JRC 17-128 | TRI-0006
- Manufacturer: TriSpark
