Twin Nozzle System

The Twin Nozzle system plays a critical role in the PRO-OILER's overall performance.

Without an efficient delivery system, some of the advantages of the PRO-OILER's precision can't be fully exploited.

A "classic" single nozzle can do the primary task of keeping the bushings and rollers lubricated - oil is pulled through by capillary action.

However, lubricating the bushings and rollers is not the only job to be done - the o-rings need some lubrication to avoid heating up, and degradation from UV and other environmental factors.
The oil doesn't penetrate past the o-rings, but it significantly reduces friction at the outer contact area with the plates.

The plates need to get some lubricant too - if only for cosmetic purposes to prevent ugly fly-rust.

The problem is that the lower the speed, the less aerodynamic turbulence there is to distribute the oil droplets to the o-rings and outer surfaces of the side-plates. The PRO-OILER is perfectly capable of being calibrated so lean that the bushings and rollers get enough lubrication, but the inner o-rings dry out.
This is the problem which the Twin Nozzle helps solve:
- how to run lean, but still cover the chain with a film of oil.
- how to minimize fling off, but still have reliable lubrication.

There are several versions of the Twin Nozzle - some are bike model-specific like the VFR mini-nozzles.
Some bikes need a special bracket, due to the particular layout of their swingarms - for example, several Aprilia v-twins, Triumph single-sided swingarm models, Honda Africa Twin, Transalp, Kawasaki ZRX1100/1200 - amongst others.

However, most bikes use the standard Twin Nozzle and bracket.

The Pro-Oiler will be delivered with a nozzle assembly optimized for your bike.
Sure, our competition claims to deliver "bike specific kits" but you will agree it takes more than orange or green tie wraps to make a custom kit, don't you?

***Evolution of the Twin Nozzle***

Initially, we used a classic single nozzle system, but quickly realized that to optimize performance we had no option but to develop a double-sided delivery system.

The original Twin Nozzle took on board the perceived wisdom that the oil has to be deposited on the sprocket at around the 6 o'clock position, so that it could be centrifuged out to the bushings and rollers.

The problem with depositing at 6 o'clock is that this demands long nozzle arms - and in many cases the widely spaced sprocket bolts, and lightening holes in the sprocket made this next to impossible. Add to this the fact that due to their length, the arms were more vulnerable, and difficult to position accurately.

This led to the development of the "short-arm" nozzle in its current form. First we had to be sure that efficiency was unaffected - and it turned out there was strictly no difference between depositing the oil on the sprocket at 8 o'clock vs. 6 o'clock.
At the same time we introduced the stainless steel bracket which allows perfect alignment and fine adjustment of the nozzle

For further info and example installations, please see the FAQ and the pictures in the Gallery.


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