Stuart Faulds Posted November 12, 2002 Share Posted November 12, 2002 Does anyone *know* what range the Freestyle front bar covers in terms of standard Caterham bars? I need this info to finalise the spec of a new kit today, and I'm just getting the answerphone at Freestyle. Cheers Stuart 🤔 Link to comment Share on other sites More sharing options...
Marius Posted November 12, 2002 Share Posted November 12, 2002 As far as I know the Freestyle ARB covers ALL available Caterham ARBs, from very thin to pipeline size. Did an excellent job on my car though. Marius Link to comment Share on other sites More sharing options...
scooby dooby doo Posted November 12, 2002 Share Posted November 12, 2002 somebody calimed 3/8 to 5/8 but that range seems to small to me. Give Len a call on 01892540828 and then let us know ❗ HOOPY 500 kg R706KGU Link to comment Share on other sites More sharing options...
Stuart Faulds Posted November 12, 2002 Author Share Posted November 12, 2002 I've already left a message for them to call me back, and I'll certainly pass on the info when I get it. I'm astonished people are buying these bars without getting this info first though! Stuart Link to comment Share on other sites More sharing options...
Jason Plato Posted November 12, 2002 Share Posted November 12, 2002 I was also told 3/8 > 5/8 . Dave Link to comment Share on other sites More sharing options...
Graham Sewell Posted November 12, 2002 Share Posted November 12, 2002 From a previous thread, this would represent a range of stiffness with the 5/8" bar being 7.5 times stiffer than the 3/8" bar. Low tech luddite - xflow and proud! Link to comment Share on other sites More sharing options...
scooby dooby doo Posted November 12, 2002 Share Posted November 12, 2002 the two biggest bars (ie the ones outside the 3/8 to 5/8 range) are designed for vx race cars and the JPE. these would be VERY stiff for a K or Bike engined car. Just to explain as well - the torsional stiffness of a solid rod goes with the 4th power of the diameter. ie double the thickness and you get 16 times the stiffness. HOOPY 500 kg R706KGU Link to comment Share on other sites More sharing options...
stevefoster Posted November 12, 2002 Share Posted November 12, 2002 I talked to Len and Co. and bought the Freestyle adj bar just in time for my last race in Oct. It is indeed 3/8" to 5/8". I had the 3/4" bar on my post 96 sprung widetrack HPC until I changed to the Freestyle one. I set the bar to 5/8" in the dry. I now run stiffer fron springs and the 5/8" bar. I experience better balance = no understeer in the slowest corner at Lydden now. Bear in mind I am running big 9" slick pushers at the rear and have no rear ARB to aid traction (well ok I could not run the rear ARB as it fouled the SLR size rear rims). The extra traction gained without the rear ARB is good for my 185 021's and the 9" slicks however! Freestyle advocate removing the rear ARB for most cars when they do their damper and ARB set up. I think they do their own rear ARB or perhaps I am mistaken on this... I have yet to play with even softer front ARB settings in the rain... /Steve My racing pics, 7 DIY, race prep. Updated often here Hants (North) and Berkshire area club site here Edited by - stevefoster on 12 Nov 2002 20:08:33 Link to comment Share on other sites More sharing options...
Stuart Faulds Posted November 13, 2002 Author Share Posted November 13, 2002 Thanks Steve. I spoke to Len last night and he confirmed it covers from just less than 1/2" to just thicker than 5/8". Cheers Stuart Link to comment Share on other sites More sharing options...
Mike Bees Posted November 13, 2002 Share Posted November 13, 2002 Are we talking about the solid bar or the tubular one? Mike Link to comment Share on other sites More sharing options...
Stuart Faulds Posted November 13, 2002 Author Share Posted November 13, 2002 Erm, good question! Is the new Freestyle one differerent from the Juno ones then? I thought it was tubular from the look/feel of it when I saw it. Stuart Link to comment Share on other sites More sharing options...
scooby dooby doo Posted November 13, 2002 Share Posted November 13, 2002 Its tubular i think. Its certainly fairly light. HOOPY 500 kg R706KGU Link to comment Share on other sites More sharing options...
Graham Sewell Posted November 13, 2002 Share Posted November 13, 2002 My understanding is that the adjustability is from the flattened arms on the front ARB which will act like torsion springs. When moving perpedicular to the flat side, it will be softer. A bit like bending a ruler really. The angle of the ruler is adjustable through 90' and hence so is the stiffness. As the wheel hub is located using a double wishbone, any sideways component of the ARB when adjusted to an intermediate setting will be controlled by the upper wishbone. I may have got this completely wrong, but that is how I remember what I saw at Brands Hatch Low tech luddite - xflow and proud! Link to comment Share on other sites More sharing options...
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