mikedearing wrote:
>
> I bought one of these at the weekend to put on my Bianchi P-R as Ive given
> up with trying to find the spider at the moment (I have a NOS
> Bianchi chainwheel!) it is the same model as went on the Thanet
> Silverlight of the early 1950s - it has 5 double blades in a pentagram-ish
> shape, a goldy brown coloured splined axle and chrome/steel captive allen
> headed studs to pull the splined cranks onto the splines - so far so good
> (will undoubtedly become a problem when I find the axle is too short! but
> that may be another story...) oh and the cups are italian thread as to be
> expected...
>
> Does anyone know: are the right hand and left hand counterbored threads on
> the axle of a dif diameter as one stud fits and one doesnt (or is one lh
> and one rh thread - if so I have three studs exactly the same that only
> fit one side arrgghh!) if anyone can enlighten me I can send them a jpeg
> of the offending articles... cos this bike is destined to only ever have
> one crank the way this is going on...
>
> In anticipation ...
>
> Regards Mike :7)
Hi Mike,
I have a Gnutti three-pin splined crank on my '54 Hetchins Vade Mecum and the axle has a left-hand thread on the left and a right-hand thread on the right for the allen-headed crank bolts.
Regards Chuck Ô¿Ô¬