fkrisztian

I know that Elf Htx 740 is a great oil, but officially speaking it's not the perfect one. Quotes: "HTX 740 is ideal for Motorbikes with dry clutches." HTX 740 contains "FRICTIONAL MODIFIER: Additive used to reduce the coefficient of friction on oiled parts, thus improving their mechanical efficiency." "Friction modifiers in automotive oils tend to provide increased frictional reduction and offset a portion of the fuel economy lost when the U.S. Government mandated a reformulated gasoline for emissions requirements. However these friction modifiers can be detrimental to proper wet clutch operation and can cause slippage and other potential performance issues..." In reality it doesn't really make problems, but it may cause clutch slipping when the clutch plates or the springs are not 100% perfect. This very light oil is better and makes the clutch less prone to drag problems (because it's viscosity is lower): http://www.lucasoil.co.uk/store_item.php?product=10281 It's cheaper, too, and most important, it doesn't contain friction modifiers so it's compatible with wet clutch bikes.

I would like to share what I found out. Let's take a Suzuki Gsx-r 1000 clutch. It works perfectly and it's easy to find neutral all the time. Many people use 10w-40 oil in their Gsx-r. Of course it's a 4T engine so the oil lubricates the engine, too. With an installed oil temperature gauge it turns out that in normal conditions the oil's temp is around 200 °F (95 °C). A 10w-40 oil at 200 °F has a viscosity of 14.6 cSt. A trials bike crankcase oil is not heated up by the engine. Of course by the friction of the gears it still warms up to about 105 °F (40 °C). If we look at an average gear box oil, then we will find that it's viscosity at this temp is 64.3 !!!!!!!! It's a huge difference, it's like spinning the clutch in glue. Of course it's hard to find neutral and the gearbox is not working that smooth. So we are all using ATF and or Putoline Light Gear oil. And it's working somehow, because ATF Dexron III has a viscosity of 34 cSt. But we can still make it better. We need an oil with 14.6 viscosity at 105 °F (40 °C) NOT 34. This means that we need a 0W-5 oil (or 0W-2 if it's possible). It's not that easy to find this kind of oil, because it's used only for racing, but it can be ordered from the internet. For example: http://www.redlineoil.com/product.aspx?pid=10&pcid=1 (Vis: 11) If you really don't want to order from the internet, then any 5WT (or 2WT) fork oil has also the wanted viscosity, like Putoline Fork Oil Light (http://www.putoline.com/en/products/catalogue/segp_scooter/psusp/448/scooter/suspension-oils/fork-oil-light/) (Vis: 15) but this is not really a good idea, because we don't know what additives was added, but it helps to understand the idea behind this. You will see that those who ride 4T trials bikes have less clutch drag problems. This confirms my theory. P.S.: This oil seems also a great option: http://www.lucasoil.co.uk/store_item.php?product=10539 (Vis: around 10 cst I think)

Hi! I've sent my '04 Rev3 Paioli shock absorber to service, and I was told that the bladder is punctured and there are no spare parts available, so it's unrepairable. It was even mentioned that because the shock is junk it's not even worth for me to pay for it's postage back to me (I live in Romania). Here are some pics: (It was sent to Falcon Shock Absorbers for service.) Any ideas?

I've found a REALLY good oil which COMPLETELY eliminates clutch drag problems: http://www.lucasoil.co.uk/store_item.php?product=10281 It's a 0W-5 oil, so it's viscosity is lower than ATF oil's viscosity. (Lucas Oil) Visocisty 40

It's absolutely ridiciolous. When will Beta solve this whole stator problem? I can't believe that even the 2008 bikes have stator problems. Probably around 2015 they will realise that they should do something about this.

That was a good price for an Adamant frame.

I hate these spam (and/or) fake e-mails very much.

And I thought that trials is a cheap sport.

I've found a cool biketrials video on the internet. I liked it much. It can be downloaded from here: http://tv.isg.si/site/filebrowser/roly_the...r=Last+modified Right click on the "HegedusLaszlo_Szeged08_LJ.vob" file and Save Target As. The size is 264 mb, so it's not small, but it's worth it. It has excelent video quality.

Thanks. And thank you very much for the tip. I will try to improve my confidence and to have faith to pop that clutch hard. P.S. I think that my name "Krisztian" in english is Chris, but I'm not sure. Anyway I don't know for sure, so it doesn't matter.

I made another video about riding my Rev3. Here is the online version (similar to youtube): http://www.vimeo.com/1523870 Or, if you want better image quality, then you can download it from here: http://www.trialmotor.hu/files/contentimag.../FK_video10.avi (right click -> save target as) 60 mb

All I know is that a new piston is 105 quid.

(2 liters of Pepsi Light in the backpack works for me. But I simply don't go out riding if the weather is very hot.)

I forgot to mention, if you want to know this is what I can do with a trials bicycle: http://www.youtube.com/watch?v=gCLtkR5-y-0 and http://www.youtube.com/watch?v=lgMprTSvn9M Actually I'm still better with a bicycle then with a motorbike. I hope that I will be better with the motorbike, too.

I have some bicycle trials background.