Primary and Transmission Tools

Primary and Transmission Tools

Primary and Transmission Tools for Classic British Motorcycles

Clutch and gearbox jobs are easier to plan when you have the correct service tool before opening the assembly. Browse primary and transmission tools for vintage Triumph, BSA and Norton motorcycles, including clutch hub pullers, clutch locking tools, a Norton Commando diaphragm-clutch compressor, high-gear nut spanners and Triumph transmission tools. Match the tool’s listed model, year and part number to your bike before ordering.

Tools for clutch and primary work

  • Clutch hub pullers: Choose from tools listed for Triumph and BSA singles, twins and triples. These are distinct applications, so check the product listing rather than assuming one puller fits every clutch.
  • Clutch locking tools: The range includes tools listed for Triumph/BSA twins and Norton Commando models to hold the relevant clutch assembly during service.
  • Norton diaphragm-clutch compressor: The category lists a compressor for 1968–75 Norton Commando 750 and 850 models. The diaphragm spring is under pressure; consult the correct workshop procedure before removing its retaining clip.
  • Primary adjuster and inspection-cap tools: Purpose-listed tools are available for certain Triumph and BSA primary-drive tasks. Check the fastener and product specifications for your assembly.

Tools for gearbox service

For selected Triumph applications, this collection also lists a high-gear nut combination spanner, a layshaft needle-bearing installation tool and a five-speed transmission indexing tool. Because four- and five-speed gearboxes differ, identify your gearbox and consult its workshop manual before disassembly or adjustment. Browse Triumph manuals or the full books and manuals collection for reference material.

For additional background on one of the more specialized jobs, read Motorcycle Classics’ overview of the Norton Commando clutch compressor. When you’re gathering equipment for the rest of your project, explore workshop tools and the broader service tools selection.

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