swsambler

Thanks very useful.

I ran 13 inch wheels some 5 years ago, but stupidly sold them as I had 5 years in an OMS single seater. I should have held onto them. Oh! Well.

Very helpful, many thanks.

I am looking to change my 11 year old CR500 tyres on my 15inch rim Roadsport. The car has 280hp and I do a mixture of Hillclimbing and Road use. The current 195/45 R15 ( Dia 554mm Section 200mm) in Avon CR500 or ZZS/R seem to not be available anymore. My question is do the 195/50 R15 (Dia 577mm Section 201mm) fit under the cycle wings? Either Avon ZZS or Nankang AR1

13 or 15 inch?

Hi, Caterham wheels, black, 8 and 6 x 13

Hi, Yes, both bits plus nuts and bolts.

I have some race bits and pieces for sale as have moved on from sprinting my Roadsport SV to an OMS 2000M. A tillett B6 Carbon GRP seat would suit an SV. VGC. Complete with TR1 seat runner. All new ex vat £631. Looking for offers around £ 375. Set of wheels and tyres. 13 inch rims. ZZR A24 soft compound. With 4mm of tread. 215/55 and 185/55. New £1,274. Looking for offers around £850. WHEELS AND RIMS NOW SOLD Head restraint to suit FIA roll bar SKU79045. New £29. Looking for offers around £17. HEAD RESTRAINT NOW SOLD.

If you are interested I shall be in Wimbledon for the weekend of 23rd April and could deliver. If you are getting into racing I have a Tillet B6 Carbon GRP seat, head rest back plate, and crotch strap valid for 2016.

I have a set of these with ZZR A24 rubber.

What are the timings on the day please?

In response to your question....no apparent damage on old unit and green sensor working fine. Can only assume some signal breakdown in or from the old unit.

Had the same problem with my 2010 build 175 Roadsport. Speedo used to fluctuate and then go to zero above 50/60mph. It would then recover as speed dropped and continue to fluctuate. I tried all the clearance, cleaning, electrical continuity, mount flexing and pulse recomendations to no avail. Instantly cured by fitting new sender and lead. Good luck.

When I built my 2010 SV 175 Roadsport, I had a spongy pedal. This was cured by bleeding and persistently tapping the rear calipers with a soft head hammer. It took many bleed sessions to remove all of the air. I would pressurise with Eazibleed and tap then release and then repeat the procedure. Tiny air bubbles came out for a long time. My pedal has been rock hard since then even when sprinting and hillclimbing. Apparently it is due to the orientation of the rear Sierra caliper on the Caterham.

After much cleaning and adjusting I only managed a slight improvement with needle still fluctuating and eventually falling to zero around 70mph. All other components seem fine, castellated ring not slipping, bracket firm, gap set at 1mm etc. Took the plunge and replaced the sender unit at the rear axle. All now fixed and needle steady at all speeds.