“Dad’s Suitcase Triumph”

Old, weathered leather suitcase with metal latches, sitting on a blue table outdoors, with a white mug and green foliage in the background.
Purple and black Triumph motorcycle parked on a road with another blue motorcycle behind it, countryside landscape with a stone wall, tree, and a sign that reads 'Cotswold Way Public Footpath' under a partly cloudy sky.

1970 Triumph T100T Daytona

Restore • Recondition • Recommission

This 1970 Triumph T100T Daytona arrived at Quadrant Motorcycles as a long-forgotten passion project with a remarkable story behind it.

Originally stripped down by the owner and his brother during the late 1970s and early 1980s, the intention had always been to clean, rebuild and return the motorcycle to the road together. Life moved on, and for more than four decades the project remained stored away in suitcases, boxes and spare rooms, moving from house to house as the years passed.

By Winter 2025, many original parts had inevitably been lost, but the heart of the motorcycle remained — the original frame, engine cases and core chassis components were still present, providing the foundation for a full ground-up restoration.

The customer brief was refreshingly simple: not a concours-correct museum piece, but a clean, reliable and beautifully presented motorcycle that could finally be enjoyed on the road once again.

Quadrant Motorcycles carried out a complete restoration, reconditioning and recommissioning programme including:

  • Complete Triumph twin engine rebuild

  • Full chassis restoration and refinishing

  • Fresh Daytona paintwork in correct purple metallic with hand-painted gold and silver-grey pinstripe

  • Fuel tank corrosion and perforation repair prior to repainting

  • Original wheel hubs vapour blasted and restored

  • New stainless steel spokes with English chrome wheel rims

  • New Dunlop tyres fitted throughout

  • Complete new wiring harness installation

  • 12-volt electrical conversion

  • Electronic ignition conversion for improved reliability

  • Rebuilt speedometer and tachometer assemblies

  • Fork rebuild with new seals, oil and refinished lowers

  • Full gasket and seal replacement throughout

  • Missing components sourced and restored

  • QD rear wheel assembly rebuilt with rare sourced components

  • New brake shoes precision-lapped to hubs

  • Frame, subframe and chassis components refinished in gloss black

Due to the significant number of missing and damaged components, extensive sourcing and restoration work was required throughout the build. Alongside the mechanical restoration, Quadrant Motorcycles also supported the motorcycle’s successful re-registration, MOT preparation and return-to-road process.

Today, the Triumph once again sits proudly on the road — no longer forgotten in storage, but restored, reconditioned and recommissioned exactly as intended all those years ago.

Quadrant Motorcycles specialises in classic motorcycle restoration, vintage motorcycle recommissioning and bespoke rebuild projects from our workshop in Donington, East Midlands, UK.

A pile of old and dirty metal bolts, nuts, screws, wires, and scraps on a rust-colored surface. Some crumpled paper and pieces of tape are also visible among the debris. Barn find Triumph T100 restoration project.
Various old, rusty and worn shock absorbers, forks and suspension parts laid out on a metal surface outdoors. Barn find Triumph T100 restoration project.
Close-up of a rusty, old motorcycle fuel tank with visible dirt and corrosion. Barn find Triumph T100 restoration project.
An old, rusty Triumph T100 500cc twin motorcycle engine placed on a white surface outdoors, with bushes and white flowers in the background. Barn find Triumph T100 restoration project.
A rusty, open metal toolbox filled with worn rags, mechanical parts, gears, screws, pistons, gearbox gears, sprockets, and miscellaneous tools and objects. Barn find Triumph T100 restoration project.
Disorganized mechanical parts including gears, shafts, screws, and metal debris scattered on a dirty work surface. Barn find Triumph T100 gearbox parts for restoration project.
A worn and rusted Triumph T100 QD Quick Disassembly rear wheel with metal spokes and an old hub, resting on a concrete surface. Pitted chrome. Barn find Triumph T100 restoration project.
Triumph T100 Amal carburettor slides and handlebar controls. Cables for throttle choke and carburettor manifolds. Barn find Triumph T100 restoration project.
Close-up of a purple motorcycle fuel tank with grey and gold pinstriping. Vintage Triumph original colours. Barn find Triumph T100 restoration project.
Close-up of a purple motorcycle fuel tank with yellow lettering and chrome accents, showing part of the handlebar and mechanical components. Triumph 500 Daytona T100 fuel tank in original Triumph vintage colours. Barn find Triumph T100 restoration pr
Close-up photo of a vintage motorcycle's front end, showing the shiny chrome handlebars, purple fuel tank with yellow and white stripes, and a blurred yellow logo at the bottom. Original Triumph vintage colours, restored. Barn find Triumph T100 resto
Close-up of a metal surface with the engraved text 'Made in England' and part of a metallic component with screws. Restoration Triumph, classis British bike English chrome rims with stainless steel spokes. Barn find Triumph T100 restoration project.
Close-up of a motorcycle fuel tank with a shiny chrome fuel cap, a purple paint job, and a black and silver license tank badges with partial text visible showing Triumph. The background shows a person's hand holding a small, rough piece of metal whic
Close-up of a classic Triumph T100 QD Quick Disassembly rear wheel hub with spokes attached. Wheel hub has been vapour blasted and painted black. Spokes have been replaced with stainless steel as part of a barn find motorcycle restoration.
Close-up of a motorcycle wheel, showcasing the TLS twin leading shoe brake, spokes, and part of the suspension. The Dunlop tire has visible treads and markings. The wheel has be restored with English chrome rims and stainless steel spokes as part of
A vintage purple Triumph motorcycle in a workshop with tools and storage cabinets in the background. The bike is just completing a full nut and bolt classic British motorcycle restoration from a barn find condition.