From popular Triumph applications to Suzuki six-pot Tokico calipers, these are the sort of TRK rebuild kits that show what the range is about: stainless steel pistons, fresh seals and useful hardware brought together for the job, often turning a repair into a worthwhile upgrade.
TRK kits cover a broad spread of motorcycles, but exact fitment can still change with model, year and caliper position. The examples below show the brand's all-in-one rebuild approach across both Triumph and Suzuki applications, with the correct kit always confirmed against the individual bike listing.
PKAG1992 is a popular TRK kit covering a surprisingly wide spread of Triumphs. Fitments include Speed Triples, Daytonas, Street Twins, Scramblers, Tigers, Trophy models and a number of classic Hinckley-era applications.
Inside the box are two 27 mm stainless steel pistons, piston and dust seals, slider boots, stainless bleed nipple and cover, copper banjo washers and red rubber grease. It’s a nicely thought-out rebuild kit, with the stainless pistons offering strong corrosion resistance and the stainless bleed nipple helping avoid the familiar battle with a seized, rusty bleed screw.
PKWS7460 is another popular TRK kit with a broad spread of Bonneville fitments, appearing across early 800 and 865 models as well as selected T100, T120 and Bobber variants.
The kit brings together the main caliper rebuild parts in one box, including stainless steel pistons, seals and the associated hardware. It’s a practical way to refresh a tired caliper without chasing individual parts, with the stainless components helping give better resistance to the corrosion that can build up after years of wet weather, road grime and winter salt.
PKAG2963 is a TRK stainless steel piston and seal kit for selected Suzuki models using Tokico six-piston brake calipers. Fitments include Hayabusa, Bandit, GSX1400, GSX-R and TL1000R applications, depending on model and year.
With stainless steel pistons replacing the original items, it is more than simply a repair. The kit gives the caliper a useful corrosion-resistant upgrade while costing around a third of the equivalent OE route — particularly appealing when rebuilding a pair of six-pot calipers.
A caliper rebuild is rarely just about the piston. Dirt, old seals, tired slider boots and crusty bleed hardware all add up, which is why the complete-kit approach makes sense.
TRK stainless steel pistons replace tired, pitted or corroded original items with a more corrosion-resistant alternative. Depending on the application, kits contain the correct piston quantity and sizes for the listed caliper, backed by TRK’s lifetime guarantee against corrosion.
Piston seals, dust seals and slider boots tackle the rubber parts that age, flatten and collect road grime.
Bleed nipple, cover, banjo washers and red rubber grease mean fewer last-minute trips to the parts drawer.
New pistons and seals deserve a clean home. The aim is to remove brake dust, corrosion and old deposits without damaging the caliper bore, seal grooves or new rubber components.
Before stripping the caliper, remove loose road dirt and brake dust from the exterior. Keeping the mess outside reduces the chance of dragging grit into the hydraulic side during dismantling.
Remove pads, pistons and old seals using the correct workshop procedure. Avoid scratching the piston bores or levering against sealing surfaces.
Old fluid deposits and corrosion behind the seals can stop a new seal sitting properly. Clean the grooves carefully with tools that will not gouge the aluminium.
Use a cleaner intended for brake components on bare metal parts and follow its instructions. Avoid petrol, mineral oil or general-purpose petroleum grease around brake seals.
Look for damaged bores, cracked castings, seized sliders, damaged threads and corrosion that cleaning cannot safely remove. A rebuild kit cannot rescue a mechanically damaged caliper.
Fit the new components with clean hands and the correct brake-compatible assembly lubricant. Once rebuilt, bleed the system thoroughly and check carefully for leaks and correct brake operation.