Time to jump in here methinks,
I've been looking into this since the question was posed in April.
I have another interest other than 'old MTB's' and this requires quite a few pots of 'model paint'. :facepalm:
The RAL code mentioned above does indeed refer to what is commonly called 'Panzer Grey', its correct term is Schwartzgrau - Black Grey.
I've been digging into the various model paint ranges available that have a 'Panzer Grey' in their range.
I have produced a colour swatch card of the available colours, however I'm out of the UK for at least a week so can not post this up for all to see at present.
Cutting this short.... Humbrol 67/ Tamiya XF63 or Revell No 9 are not even close in tone.
The best I have found so far is Vallejo Model colour 70.995 - German Grey 167, I've used this on a M-737 XT Mech and its almost indistinguishable from the exsisting colour. Its worth bearing in mind that the colour on these components will have faded/darkened over time with eposure to the elements and contaminants, so this shade may not match what you have. A complete repaint may be a better option than a large touch-up. I have a pal who has just had 'Halfrauds' colour match the grey on his Ultegra pedals, I've yet to see how close the match is.
Once I finish tracking down the remaining manufactures paints I will post up my findings.
The Vallejo colour mentioned above is available in Model Zone in the UK
Andy
I've been looking into this since the question was posed in April.
I have another interest other than 'old MTB's' and this requires quite a few pots of 'model paint'. :facepalm:
The RAL code mentioned above does indeed refer to what is commonly called 'Panzer Grey', its correct term is Schwartzgrau - Black Grey.
I've been digging into the various model paint ranges available that have a 'Panzer Grey' in their range.
I have produced a colour swatch card of the available colours, however I'm out of the UK for at least a week so can not post this up for all to see at present.
Cutting this short.... Humbrol 67/ Tamiya XF63 or Revell No 9 are not even close in tone.
The best I have found so far is Vallejo Model colour 70.995 - German Grey 167, I've used this on a M-737 XT Mech and its almost indistinguishable from the exsisting colour. Its worth bearing in mind that the colour on these components will have faded/darkened over time with eposure to the elements and contaminants, so this shade may not match what you have. A complete repaint may be a better option than a large touch-up. I have a pal who has just had 'Halfrauds' colour match the grey on his Ultegra pedals, I've yet to see how close the match is.
Once I finish tracking down the remaining manufactures paints I will post up my findings.
The Vallejo colour mentioned above is available in Model Zone in the UK

Andy