About our selected products



Aspen fuel is available as a pre-mixed 2-stroke fuel and 4-stroke fuel is suitable for use in chainsaws to model cars and lawnmowers to camping stoves

Alkylate petrol = environmental petrol

The name comes from the word alkylation, which is the name of the process used to extract the raw product.

From gas to liquid

The alkylation process takes place at oil refineries through surplus gases from the crude oil distillation and cracking plant being mixed. The result is a liquid (alkylate) which is the purest extractable petroleum product.

The alkylate is then mixed with a number of other components and we now have a finished product – the Aspen alyklate petrol.

Better for your health, the engine and our environment

When you use Aspen environmental petrol, you avoid dangerous substances such as benzene and aromatic hydrocarbons, substances that can cause serious health problems. The engine is also treated more kindly, for example, the spark plug and combustion chamber are kept cleaner. As Aspen is also ethanol free, the petrol can be stored safely and even after long periods of no use, your engine starts without any problems if your tank has been filled with Aspen environmental petrol. Environmentally, there are numerous benefits, e.g. the formation of ground-level ozone (smog) is reduced by more than 50%.

Maximum efficiency

Small engines are often uncomplicated and are technically simple engines with less than optimal combustion rates. This means that much of the fuel escapes unused. This, in turn, has a negative impact on both the environment and you, the user.

The following machines benefit from Aspen environmental petrol: Lawn mowers, grass trimmers, rotavators, outboards, chainsaws, brushcutters, generators and motorcycles.

With or without oil

There are two main variations of our petrol: Aspen 2 and Aspen 4:

Aspen 2 is a ready-mixed petrol with 2 % fully synthetic two-stroke oil. Aspen 2 is used for all two-stroke engines except outboards, which need the addition of a special outboard oil. Aspen 4 is not mixed and is used in four-stroke engines and two-stroke engines with separate lubrication.





What makes a Sugihara bar so good? This is a difficult question to summarise easily.

Sugihara bars started manufacturing chainsaw bars in 1967 by Hideo Sugihara. Japan has always had a reputation for excellence forging and working steel. Having the knowledge to manufacture quality chainsaw bars is not something that is gained overnight. It is a complex process of which cutting out the initial bar is only one part.

Sugihara bars have been produced by the Sugihara family since the factory began and knowledge has been passed from father to son. Tomo Sugihara (son of Hideo Sugihara) grew up understanding and building chainsaw bars. Yuki Sugihara (son of Tomo Sugihara) now heads the marketing department of the company. Many of the employees who work in the factory have worked there for one or even two generations. Other manufacturers may produce in different factories in different parts in the world. Sugihara bars have always been produced in the same factory by the same family.

Steel has different properties dependant on how it is heated then cooled. Sugihara bars may go through the process of heating and cooling up to 4 times on different parts of the bar in order to gain maximum performance. The rails need to be accurately cut and hardened but over hardening can make them brittle. The bar body needs to be stiff yet flexible. We have used a number of different chainsaw bars over the years including all the major manufactures. Sugihara bars are the hardest wearing bars out there. Even their laminated bars will outlast rivals.

On the single piece pro and light type bars the hardness of the rails is measured at HRC 60. Compare this to Stihl at HRC 57 and Oregon at HRC 55 and it is clear why these bars last longer. They are so hard they resist most flat files when it comes to bar dressing.

There are a number of details that differentiate Sugihara bars from others. For instance each replaceable sprocket nose bar comes with a matched nose sprocket.

Other bars will come with a generic .063” (1.6mm) gauge nose sprocket where Sugihara noses come in .050,.058 and .063 dependant on bar gauge. There is little or no gap between the nose and the bar body. Replacement noses are available to get the most life from the bar and nose changing kits allow the customer to change the nose themselves. Many bars are unique to Sugihara such as 1/4” pitch replaceable sprocket nose bars, light type bars for top handled saws (rather than just laminated bars), 1/4” sprocket nose options for smaller saws, the smallest nose carving bar in the world (light type solid bar) with tip diameter of only 7mm (compared to dime tip bars of 9mm).

Solid and light type bars have a hard wearing melamine resin finish – the steel is flawless and polished and there is no need to hide blemishes or scratches with paint.

Tolerances are exact in both the bar body and the bar groove. There are few if any other bars out there that match the evenness and tightness of a Sugihara bar groove. Quality control is the responsibility of everyone at the factory and is checked at all production stages.

Sugihara chainsaw bars come in 3 types

Sugihara Pro Laminated bars
These bars are similar to the Oregon Pro lite and Pro Am and Stihl Rollamatic chainsaw bars. They feature a sandwich construction where 2 pieces are welded together with the internal space filled with a punched blank. These are less expensive to produce and can be made lighter in weight.

Sugihara Pro Solid bars
Formed and cut from a single piece of steel the pro solid bars have the best durability and stiffness characteristics. They are lacquered rather than painted. Ultimate durability and performance mean this is the benchmark bar. These bars carry a red label.

Sugihara Light Type Pro bars
The light type bars are effectively the solid bars but with sections carefully removed then filled with resin. This helps retain all the characteristics of a solid bar yet makes the bar lighter. Light type Sugihara bars are the most sought after due to their high performance and lighter weight. They are easily recognised by the white resin sections and black labels.


So that explains a little about why Sugihara bars are as good as they are and why there is an ongoing commitment to improve quality and design with new bars being built all the time.

The durability of these bars is best illustrated by a testimonial given by Adam Dufour, owner of D&D Enterprises and the Adam Dufour Logging Company with his comment “Most loggers wear out chainsaw bars with their chainsaws. I have worn out chainsaws with my Sugihara chainsaw bar.” Dufour uses both Dolmar and Husqvarna chainsaws in his logging operations and although this is stretching the truth it does give an idea of these bars longevity.



Since its initial launch in 2007,the treeMOTION has wowed its users with exceptional comfort, a great range of motion, individual gear loops, great work positioning convenience, and improved distribution of loads as well as its premium quality materials. It has become one of the most well-liked climbing harnesses in the world of tree care. In spite of that, it has been our aim to further improve the treeMOTION, by taking user feedback into consideration.

The PPE-approved rear tie-in attachment option according to EN 358 serves mainly as a retaining feature if the user is working bent over forward in the tree. In addition, the treeMOTION was tested for a total load of 120 kg rather than 100 kg. This allows climbers to safely carry more gear, if needed. The new UV-resistant seams make the treeMOTION also suited for the harsh conditions under the Australian sun. For the safety of climbers, we arranged a stitched seam at both ends of the rope bridge in order to ensure that the rope ends are long enough beyond the knot. Furthermore, the use of the DMM Axis Swivel S on the rope bridge instead of the ring was tested as well.

At the request of many, the Comfort Back Padding has become a standard part of the treeMOTION. This padding has wide flexible grooves that support the dissipation of heat and allow the padding to rest snugly against the wearer‘s body without creases. The central part of the padding is specifically designed for the lumbar region and provides additional support.

The treeMOTION has been built to cater to the highest demands and expectations, all around the globe. This has been achieved by using a highstrength textile/plastic mixture, best quality hardware, and exchangeable wearing parts such as hip-leg connection, sliding D, and leg loops