TimMK

Last christmas, I built myself a classic randonneur from an old RIH Speciaal (1978) which I bought for 40 EUR. I planned to only use the frame and the brakes and outfit the bike with quite modern components, but at the end it got kind of mixed. The frame, brakes (Weinmann) and racks (ESGE) are from the 80's, while the Ultegra 9 speed derailleur and bar end shifters are more modern. The rims and the front hub dynamo are modern aswell, while I used a Mavic 571 hub at the back. I had it lying around from an old bike I stripped and it was in top condition. I also really liked the looks of it (bling bling).


However, when I had to service the freehub (one ratchet was stuck in grease), I discovered, that the outer plate, which is screwed into the freehub is missing. It fixes the outer bearing, so the freehub is positioned correctly in axial direction.



It seems almost impossible to find spare parts for the hub, but my bigger problem is, that I have no idea, how this little plate is called or which serial number it has. I also could not find any exploded view of the hub to identify the missing part.

Can anybody help? Lately I saw Mavic 571 front hubs which seem to have kind of the same cover plate. Mine needs to be ~30 mm in diameter, so maybe this would fit?

Regards,
Tim

shuru421

Thats a 571? Show me a picture of the actual hub please. Maybe I can help.

TimMK

Here it is:

unworthy1

I have a Mavic catalog from 1990 it includes exploded diagrams of every hub EXCEPT the 571! but I made some sans way back and offered them up to Velobase but VB didn't accept them, go figure...maybe if I can upload the one for the 577 hub here it will work for you, these diagrams are TINY tho.
stand by...here ya go, page 11 has the diagram for hub 577 and I'll attach
p10 for the 571 hub that has no diagram

unworthy1

One thing I'll add is that outer "plate" with 6 pin-holes is the one dark spot in the Mavic hub-verse: it's alloy so very prone to seize (gall) to the hub body and then super-easy to ruin by stripping out the holes when you try to unscrew one that got "welded" shut by corrosion. Helps if you have a really good pin-wrench-spanner...and use ALL the chemical and heat help at your disposal AND be very lucky!

mpetry912 

Good luck with that one. One of the nice things about the campagnolo components is they can be repaired and spare parts are available. I think the only way you're going to find a spare part is to buy a complete hub off ebay. It's quite likely that the new one will have the same failure. There are a couple of these on eboy but no deals. My comment would be that since these use a proprietary cog design, you're better off just building a new wheel with a Shimano hub that has easy to get cogs and parts.

Mark Petry
Bainbridge Island WA USA

TimMK

Unworthy1, thank you very much for the scan! But the fact, that the left and right plate do not seem to be the same (different serial numbers), really lowers my expectations... Most rear 571 hubs which are sold are increadibly expensive, but I saw a few, "cheap" front hubs, which also have a plate like this and I was wondering, if this could be a universal and exchangeable piece. But as I said, my expectations have now dropped.

I guess, I'll search for an Ultegra 6500 hub which fits the derailleur.

Thanks,
Tim

unworthy1

Sorry to say it looks like that piece is NEARLY "universal" for MOST Mavic hubs: on the NDS the part number is 500 023 and on the Driveside of all the front and FW rear hubs (including Track hubs) it's 500 022 so I'd bet it's reversed threading to the 500 023. BUT for Freehub models (571 and 577) it looks like a different diameter as well as reversed thread because part number is 571 022, so my bet is you won't find that a donor "plate" from anything except a 571 or 577 will fit. Just for the knowledge base can you confirm whether the threading in the freehub body (shown in your looking down the barrel pic) is RH or LH threads? Next time I'm near my FW Mavic hubs I'll measure the (approx.) diameter of that part and see if it's anything close to 30mm.

TimMK

This morning under the shower I realized, that my assumptions are BS: The thread which can be seen inside the freehub is of course for the ring which keeps the pinions together. I don't know how this is called in English, but you have the older freehubs, where the last pinion is screwed on the freehub, so the thread is on the outside, but in this case it's the more modern system.

If you look closely into the freehub, you can see a little groove going all around, so I assume, that only a circlip or retaining ring is missing? This is just an industrial product, so I can buy it at the shop.

Thanks anyway!

TimMK

It get's even better. I have no idea, if there were any fumes in my man cave which clouded my mind, but everything falls into it's place, when the freehub is assembled. Could it be a newer version? The spacer is made from rubber, so when the pinion screw is fastened, it presses the bearing into place.

jfmcel

There is currently an ebay listing for "Mavic Cogs And Freehubs for 571 / 577 Series Mavic Hubs". Pricy, but you might end up with a few spares.

georges1

Mavic stuff like the 571 spare parts aren't cheap but well worth it. Mavic Mr 801 road front and Mavic Mr 801 Road Rear are a better option if you can't find new old stock spare parts, I bought these two hubs for a specific mountain bike project since Mavic doesn't manufacture non disc brake road hubs for the mountain bikes. Normally with a 130mm axle spacing you can put a10 speed cassette.

georges1

The generations of hubs made after the 571 didn't have that problem and Campagnolo hubs are more fragile if you take a 90's chorus or record hub or if you go with a 90's-00's Shamal or Bora wheels. The ratchet system used in the571 hub and in the generation of hubs made after the 571 is also a system used by DT. Finding an older pair of Mavic Cosmic Expert or Cosmic Pro is a probably much better option.

shuru421

Ive dealt with the 571 bug myself and thus, now have several 571 parts if anyone needs spares! Example, I have a set Mavic 571 ED (Campagnolo) hubs ready to be laced.

These are truly wonderful hubs. Butter..

Kontact

I would try emailing Mercian Cycles. I got some '80s Mavic derailleur parts from them last year.