What calipers are these?

iis_iis said:
Dab on the front brake at around 60kph, front Gold's lock up solid and would not release, whole front end dancing and skipping from side to side, off the road and into an embankment, still vertical.
Rebuilt the calipers, inspected the master for usual suspects ( also rebuilt ) , though my inclination was the calipers, premise being to locate the reason and not simply "shotgun" replacing consumables. Else you never know if it will happen again, with serious outcomes. j.
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I once had, on an Alfa (still Italian) a situation where, having over-enthusiastically removed free play in the pedal linkage, the heat expansion of the fluid caused the brakes to bind. The additional heat caused by this expanded the fluid more, causing the brakes to lock. Introducing more free play fixed the issue.
Worth remembering when you adjust the brake lever.

Laverda Handbook Page 37.jpg
 
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Must be just myself, similar now i recall, my bought new Suzuki GT750K with twin front disks, riding like any usual 18yo, way too fast without care, caution wots that? 1973.

Hitting Mount Ousley NSW ( big hill, known for many accidents ) line of cars stopped in front, no where to go, braked as hard as possible, manage to stop in time, yet could not get the kettle to move off, front disks locked, after a short period, released. Perhaps a mechanical "jamming" action or the unlikely though possible, boiled the brake fluid ( high moister content? ) resulting in high pressure "steam" effect. Never happened again ever and rode the kettle for many years.

Not exactly on topic, or close perhaps, the above, apologies. Indicating dangerous situations with front brakes, compromised components with modifications ala "shaved" brembo's, which had not been aware of. I do however fit different front calipers than the oem Brembo's, riders choice and all that. Proved correct with the call of quick controlled braking in dire moments of pending crash. j.
 
sfcpiet said:
Properly set up, the P08 calipers are quite adequate for road use. Of course, "better" is always the foe of the "good"...

A useful upgrade is the fitment of a slightly smaller M/C, 14mm or 9/16" is an excellent pairing for the 08s. Lots to choose from. Stainless discs are more consistant under heavy braking and far better in the wet given appropriate pads. Cast iron rotors can also be perfectly adequate with the correct pads, but disc wear can mean replacement might be on the cards in the near future, so stainless can be a serious consideration. Besides, it does away with the rust on wet discs.

The only 4-pot calipers that bolt straight on to the Ceriani forks of the triples are the BMW/Brembo type used on many Beemer models throughout the '90s-2010 approx. Not quite a plug-'n-play exercise, but pretty much hassle-free. Not sure if their off-set allows equally easy fitment to the Marzocchi forks though.

Most 4-pot calipers work well with the stock PS15 M/C, which is actually 15.8mm.

Of course, throwing unlimited $ at the front end can give you brakes that bring the tyre to squirm under braking in all conditions, but that opens a whole new can of worms...

piet

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Thank you for the detailed reply Piet. I’ll be fitting these Lucas MCB019SV pads on Friday before going to the Stafford show on Saturday so hopefully I’ll be able to pass judgement before entering the showground. Flying from Munich on Thursday and can’t wait to land in Blighty.
Cheers,
Jon.
 
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PopsYoshi said:
Thank you for the detailed reply Piet. I’ll be fitting these Lucas MCB019SV pads on Friday before going to the Stafford show on Saturday so hopefully I’ll be able to pass judgement before entering the showground. Flying from Munich on Thursday and can’t wait to land in Blighty.
Cheers,
Jon
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Oktoberfest aftermath? ;)

piet
 
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