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Classic caliper types

For information only

I am often asked about specific callipers and classic applications so I have put together a short guide here with pictures and  a brief explanation.

These are classic 94mm, 108mm mounting 2 piston calipers and 40mm mounting 4 piston calipers only

P2 F08 This is the original classic P08 also sometimes called an F08, its true designation is a P2 F08

The early models like the one shown here have what was called the saint logo. Note a small circle above the BO of Brembo also called a halo model. Twin M6 bleed nipples and 108mm mounting centres M10 clearance holes for Marzocchi forks, M10 threaded holes for Ceriani forks. Originally fitted with chrome plated steel pistons

2 x 38mm Pistons

P2 F08 P08 also sometimes called an F08, its true designation is a P2 F08

The later models 1975 onwards like the one shown here have an updated log. Twin M6 bleed nipples and 108mm mounting centres M10 clearance holes for Marzocchi forks, M10 threaded holes for Ceriani forks. Originally fitted with chrome plated steel pistons

2 x 38mm Pistons

P2 F05 Commonly used on Pantahs and smaller Guzzis these are F05 model brembo 2 piston calipers, similar in appearance to the larger F08 they are easily identified by their single pad retaining pin.

Single M6 bleed nipple   2 x 32mm Pistons/ 94mm mount centers

P2 F05 Gold. Essentially the same as the black version but with teflon coated alloy pistons , 2 piston calipers, similar in appearance to the larger F08 they are easily identified by their single pad retaining pin. Used on Some TZ race bikes as well as some Rotax and early TT1 Pantah based Ducatis.

Single M6 bleed nipple   2 x 32mm Pistons/ 94mm mount centers

P2 F08

The last incarnation of the P2 F08. The same as previous models but now only available  with M10 untapped mounting holes and a single M10 x1 Bleed nipple but with the pad cover retaining lips.

Single M10 bleed nipple   2 x 38mm Pistons/ 108mm mount centres


P2 F08 Shaved

From 1975 the Ducati 900SS used a P2fo8 shaved caliper.. The shaved referred to the front face which had the logo skimmed off and the  inner joining faces also skimmed to produce a narrower pad gap, pads and pins were thinner as a result. The lip for retaining the plastic pad covers was also removed and Teflon coated alloy light weight pistons were also fitted. These calipers were all Marzocchi fit.

2x 38mm pistons, 108mm fixing centres 2x 6mm bleed nipples

P2 F08 Gold

This is the F08 Gold used on the later Ducati 900SS and Hailwood models.  Fitted with light weight pistons and with the pad cover  lips machined off. First of the 08 series to have one 10mm bleed nipple

2x 38mm pistons, 108mm fixing centres 1x 10mm bleed nipple

P108

An excellent replacement for a worn-out Scarab or Lockheed style caliper on your vintage machine. OE rear fitment to Ducati 750/906 Pasos & late 80’s 750 Sports. This caliper uses F08 seals, pads and pistons but requires 4x M8 fixing bolts not supplied in the F08 kit

Also called F08 symmetrical the bleed nipple and brake line inputs are reversible to allow ether left or right fitting

2 x 38mm Pistons/89mm mount centres

P432B

The original 4 piston Brembo first seen on the 907ie Paso and 88/89 851

40mm mounting,  4x 32mm Pistons

P432D

Gold version of the P4 32 used on the 851Kit

P432A

Basically a P4 32 with a single quick release pin mounting for race use, the rear is marked “not for highway use”. Used on the Factory TT1 Ducati and other Ducati race bikes of the era.