BMW /5 Series (70-73) progressive fork springs

FlatRacer BMW Airhead Boxer Series /5 (1970-73) progressive fork springs


FlatRacer BMW Airhead Boxer Series /5 (1970-73) progressive fork springs


This sale consists of:

  • 1 x Pair FlatRacer BMW /5 (70-73) progressive fork springs


WILL FIT:

  • BMW R50/5 (70-73)
  • BMW R60/5 (70-73)
  • BMW R75/5 (70-73)


The FlatRacer BMW /5 pair of progressive fork springs are designed for improved handling and ride. The progressive winding means that as the suspension becomes compressed the springs become stronger, offering a more controlled suspension movement.

Their coil design with its rising rate allows to gently absorb small road bumps, greatly contributing for a comfortable ride but as you ride through harsher terrain (pot holes, bumps and other road imperfections), the springs will gradually firm up to provide a very controlled ride. 

Another noticeable advantage over the standard linear springs is the greater control it offers over front end dive when braking, which is very noticeable on a BMW Boxer with tired springs due to its original suspension long travel.

Heat treated for a long working life and ground ends ensuring a correct and positive fit. Can be fitted either way.

BMW R2v Airhead forks springs tend to get work fatigue and become inefficient in as little as 3 years of normal riding. This tends to aggravate an already softly sprung front end with its long suspension travel. BMW in fact recommended their replacement every three to five years, depending on usage. 

The result never fails to impress for how much stabler and compliant the front end will feel, especially if used with our FR top yoke triple clamp and tubular steel fork brace which increases the forks' torsional rigidity. New oil and seals are also recommended.  Please specify your bike model & year when ordering as there are subtle differences.

Fits all the BMW /5 models made between 1970 and 1973. 

As fitted to our own bikes thus we can certainly attest the enhanced performance of these springs. Their ride is truly superb, even when fitted with our fork pre-load adjusters set for a firmer ride, there is a plushness present when riding around town in less than perfect roads (ie: pot holes galore around Park Royal and NW London).

Similar fork springs'sets available for other models, please check our other listings.


IMPORTANT

1 - If your forks are fitted with the original alloy or nylon spacers (on top of the springs, usually 15-20mm in height), please re-fit these when replacing the springs. Alternatively, we can supply our own fork pre-load adjusters, please check our other listings or contact us for further details.

2 - When replacing the springs, it is highly recommended that you also change the fork oil. Please check the workshop manual for the correct viscosity for your specific model or contact us for further advice.


Similar progressive springs  also available for the later models including the /6, /7 Series and the R45 & R65 Series (1978-1984) plus the Monolever models (85 on), please see our other listings.

Please note that this is a fairly bulky/long item thus the higher shipping costs. We will very gladly combine shipping costs. If interested in any other items, please contact us for a quote or invoice.

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