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Custom Brake Calipers

Custom Brake Calipers

PM Vintage 4 Piston Caliper 125X4R
PM Vintage 4 Piston Caliper 125X4R
With this caliper Performance Machine has brought modern braking technology to one of their original calipers that put PM on the map for American made HD braking systems back in the seventies. The Vintage caliper gets its braking power from PM‘s proven 4-piston internals, but features styling cues from the original Dual Action Cast caliper. The reminiscent, CNC-machined fins give it a classic style while keeping the caliper cool and providing optimal braking power with no flex.
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PM 4 Piston Caliper 125x4R
PM 4 Piston Caliper 125x4R
The 125X4R caliper was originally developed for the race track and has since become an industry standard for billet calipers and is definitely the most imitated. This legendary four-piston dual action-caliper utilizes a two pad design to increase swept pad area of contact on disc surface which means more consistent and controlled braking power with less effort at the hand lever. The best option for cost conscious High Performance street or race bikers.
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PM 4 Piston Caliper 125x4SL
PM 4 Piston Caliper 125x4SL
The 125x4SL is a 125x4R with ”slimline” design. Especially for FXLR and XL models 1984–99 with front wire spoke wheels.
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Caliper Brackets 125x4R and 125x4SL
Caliper Brackets 125x4R and 125x4SL
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PM 4 Piston Caliper 125x4RSPH
PM 4 Piston Caliper 125x4RSPH
This caliper has the same technical features like the 125X4R, but is designed to be used at the rear wheel only. Mounting kits are available for all 1983-up XL models and 1984-86 Softail models.
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PM 4 Piston Caliper 125x4S
PM 4 Piston Caliper 125x4S
Powerful four-piston dual action-caliper, features four separate pads and sturdy construction. Very efficient yet compact unit that is a clear improvement over stock Harley braking systems.
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Front Caliper Bracket 125x4S
Front Caliper Bracket 125x4S
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PM 4 Piston Caliper 137x4 DBO (Direct Bolt On)
PM 4 Piston Caliper 137x4 DBO (Direct Bolt On)
These calipers feature four pistons with two different piston diameters. The differential bore size compensates for uneven pad wear. It has integrated mounting brackets which directly bolt (= DBO) to 1984–up front ends, except on models with narrow fork and laced wheel.
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PM 6 Piston Caliper 112x6B DBO (Direct Bolt On)
PM 6 Piston Caliper 112x6B DBO (Direct Bolt On)
These calipers feature six pistons with three different piston diameters and more braking power than the 4 piston version. The differential bore size compensates for uneven pad wear. Also the pads wear longer because of their extra thickness. It also has integrated mounting ears which directly bolt (= DBO) to 1984–up front ends with 11.5” or 13” brake discs. Exception: models with narrow fork and wire wheel. Due to lacking space this application did not find the engineers' approval.
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Rear Caliper Brackets for DBO Calipers
Rear Caliper Brackets for DBO Calipers
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Bolts for DBO Calipers
Bolts for DBO Calipers
Special bolts to mount your DBO caliper to the respective fork leg.
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PM 4 Piston Integral 125 x 4 Rear Calipers
PM 4 Piston Integral 125 x 4 Rear Calipers
The common bolted connection between caliper and bracket has been omitted here for utmost stability and consistent stopping power. Piston diameter is 4 x 1.25”. An excellent alternative to regular assemblies which will significantly improve the rear end looks of the bike.
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PM 2 Piston Caliper 125x2
PM 2 Piston Caliper 125x2
Lightweight and compact two piston dual action caliper. Very powerful considering its small size and low weight, it provides excellent pad retraction and a sturdy housing design. Ideal for custom or drag bikes. We recommend to use it in dual caliper systems for most efficient braking.
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Caliper Bracket for 125x2 Caliper
Caliper Bracket for 125x2 Caliper
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Adjustable Brake Anchor Rods
Adjustable Brake Anchor Rods
Universal anchor rods with two ball ends.
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Replacement Parts
Replacement Parts

Accessory calipers from Performance Machine

Performance Machine calipers are superior to the original Harley-Davidson ones until the early 2000s. They were originally invented for racing motorcycles. But better braking performance, sophisticated design and fixed caliper technology with double-acting pistons were the deciding factors for many riders to install PM's calipers on Harley-Davidson street bikes as well. With the introduction of solid, CNC machined calipers in 1982, Performance Machine achieved the status as an industry leader that continues to distinguish them today. Of course, it didn´t take long before they were copied. PM's design suddenly found itself everywhere, with some of these "milling shops" just bothering to swap out the logo. And of course - because of the saved development costs - the copies were also available much cheaper. But because W&W has carried PM's calipers since the early days of 1979, and because W&W has always emphasized quality, experience, and extensive testing, these copies have never been available at W&W Cycles. Nowadays most of these copies have disappeared from the market, but Performance Machine calipers are still available at W&W.

W&W's selection of PM calipers

Performance Machine is characterized by a modular system that combines a single-digit number of basic designs with model-specific holders. In addition, there are calipers for front forks from 1984 onward whose mounting tabs can be bolted directly to the fork legs. The mechanic with a lot of experience can of course opt for a single caliper and laser-cut his own brackets from an aluminum plate.

Have any questions?

Our service team will be glad to help out: Mondays - Thursdays 08:00-17:00 CET, Fridays 08:00-16:00 CET, Phone: +49 / 931 250 61 16, eMail: service@wwag.com