2015/16 Campag Zonda service advice

robbiet

My Zonda's are feeling/sounding gritty when spun and probably needing a service bearing change.
Bought them in 2015, anyone advise if bearings are loose or cartridge type, and fairly straightforward to swap?

shortfall

The freehub bearings are cartridge type and it's possible to change them without having to replace the entire freehub (fiddly though). The hub bearings themselves are loose but in a plastic retaining cage that you can easily pop them out of. Easy job to do and no proprietary tools required. Check campagnolo site for service advice or YouTube videos.

robbiet

Cheers, on the wheels it says mega g3 622x15c.
Any idea on bearing size

shortfall

robbiet said:

Cheers, on the wheels it says mega g3 622x15c.
Any idea on bearing size

No. Try https://thecycleclinic.co.uk. He's a Campag approved shop and very knowlegable.

ETA
http://www.velotech-cycling.ltd.uk/about_us.shtml

Ben6899

shortfall said:

robbiet said:

Cheers, on the wheels it says mega g3 622x15c.
Any idea on bearing size

No. Try https://thecycleclinic.co.uk. He's a Campag approved shop and very knowlegable.

ETA
http://www.velotech-cycling.ltd.uk/about_us.shtml

Hopefully, OP has more luck than me with this. Malcolm wouldn't sell me bearings for my Fulcrum Quattros because home mechanics don't have the proper tools and end up damaging the hubs. A noble stance, it has to be said, but a bit frustrating when I'm sat here with the knowledge and the tools and just need the bearings...

shortfall

Ben6899 said:

shortfall said:

robbiet said:

Cheers, on the wheels it says mega g3 622x15c.
Any idea on bearing size

No. Try https://thecycleclinic.co.uk. He's a Campag approved shop and very knowlegable.

ETA
http://www.velotech-cycling.ltd.uk/about_us.shtml

Hopefully, OP has more luck than me with this. Malcolm wouldn't sell me bearings for my Fulcrum Quattros because home mechanics don't have the proper tools and end up damaging the hubs. A noble stance, it has to be said, but a bit frustrating when I'm sat here with the knowledge and the tools and just need the bearings...

Ah right. Don't know if Quattros are different but the Zondas (or at least the ones I had) only required a couple of alan keys to do the job.
http://smutpedaller.blogspot.com/2011/04/servicing-campagnolo-zonda-hubs.html

Ben6899

Fulcrum / Campagnolo hubs are dead easy to work on.

david37

Ben6899 said:

shortfall said:

robbiet said:

Cheers, on the wheels it says mega g3 622x15c.
Any idea on bearing size

No. Try https://thecycleclinic.co.uk. He's a Campag approved shop and very knowlegable.

ETA
http://www.velotech-cycling.ltd.uk/about_us.shtml

Hopefully, OP has more luck than me with this. Malcolm wouldn't sell me bearings for my Fulcrum Quattros because home mechanics don't have the proper tools and end up damaging the hubs. A noble stance, it has to be said, but a bit frustrating when I'm sat here with the knowledge and the tools and just need the bearings...

Very noble indeed. However if you have the knowledge and tools and interest just dismantle measure the bearings and order some new ones. Simples.

thecycleclinic

Ben6899 said:

shortfall said:

robbiet said:

Cheers, on the wheels it says mega g3 622x15c.
Any idea on bearing size

No. Try https://thecycleclinic.co.uk. He's a Campag approved shop and very knowlegable.

ETA
http://www.velotech-cycling.ltd.uk/about_us.shtml

Hopefully, OP has more luck than me with this. Malcolm wouldn't sell me bearings for my Fulcrum Quattros because home mechanics don't have the proper tools and end up damaging the hubs. A noble stance, it has to be said, but a bit frustrating when I'm sat here with the knowledge and the tools and just need the bearings...

I never said i would not sell your the bearing service kit.

Quatrros normally have cartridge bearings anyway. These are 6903 for the rear and you dont need to buy them from me. I dont sell cartridge bearings. I think there was some misunderstanding.

thecycleclinic

Zonda's of the ops age use hb-re100 service kit. The kit comprises of 4xhb-re021 seals, 2xhb-re022 cones, 2xhb-re023 caged bearings and 2xhb-re124 cups. To do this at home you need tools to extract the bearing cup and a right size drift to press the new cups in. If the hub feels gritty then assume the bearings, cups and cones need changing.

Both hubs use the same service kit.

The freehub uses 2x 6803 cartridge bearings. While these can be replaced you will need a circlip pliers to remove this trapping the inner bearing and a blind bearing puller to get the inner bearing out. Use a punch and it will most likely jam in the body. The replacement freehub is FH-buu015 for campag or hb-buu015x1 for shimano. Fh bu020 in for xdr.

To do everything ends up costing over £140 in parts assuming a new freehub. The hubs will be buttery smooth after though.

A proper bearing grease should be used. Lithium greases while sufficient do separate and wash out too easily. I have been using rock n roll super web for years in these hubs. Not sure what campags grease choice is but if you can get its good. Shimanos bearing grease would be suitable too.

Cyclus make the only tool set made specifically to extract and press in the bearing cups.

If you cant do this at home then give them to a shop that can.

robbiet

Ben6899 said:

shortfall said:

robbiet said:

Cheers, on the wheels it says mega g3 622x15c.
Any idea on bearing size

No. Try https://thecycleclinic.co.uk. He's a Campag approved shop and very knowlegable.

ETA
http://www.velotech-cycling.ltd.uk/about_us.shtml

Hopefully, OP has more luck than me with this. Malcolm wouldn't sell me bearings for my Fulcrum Quattros because home mechanics don't have the proper tools and end up damaging the hubs. A noble stance, it has to be said, but a bit frustrating when I'm sat here with the knowledge and the tools and just need the bearings...

Edinburgh bike have bearings for quottros 6903 2rs
https://www.edinburghbicycle.com/kinetic-bearings-std-wheel-bearing

david37

6903 are bog standard bearings available from suppliers everywhere. there is no need or benifit to buying overpriced bearings from a bike shop.

david37

thecycleclinic said:

Zonda's of the ops age use hb-re100 service kit. The kit comprises of 4xhb-re021 seals, 2xhb-re022 cones, 2xhb-re023 caged bearings and 2xhb-re124 cups. To do this at home you need tools to extract the bearing cup and a right size drift to press the new cups in. If the hub feels gritty then assume the bearings, cups and cones need changing.

Both hubs use the same service kit.

The freehub uses 2x 6803 cartridge bearings. While these can be replaced you will need a circlip pliers to remove this trapping the inner bearing and a blind bearing puller to get the inner bearing out. Use a punch and it will most likely jam in the body. The replacement freehub is FH-buu015 for campag or hb-buu015x1 for shimano. Fh bu020 in for xdr.

To do everything ends up costing over £140 in parts assuming a new freehub. The hubs will be buttery smooth after though.

A proper bearing grease should be used. Lithium greases while sufficient do separate and wash out too easily. I have been using rock n roll super web for years in these hubs. Not sure what campags grease choice is but if you can get its good. Shimanos bearing grease would be suitable too.

Cyclus make the only tool set made specifically to extract and press in the bearing cups.

If you cant do this at home then give them to a shop that can.

The tool for removing the cups is c£25 worth buying since it will pay for itself on first use.

mercia_man

I’d dismantle the hubs, clean and inspect them before splashing out on a full service kit and special tools. It’s simple to do - shortfall has provided a useful link. You may solve the roughness by cleaning, greasing and adjusting, although if you haven’t done any maintenance on these hubs in five years you will be lucky to fix it like that. But you might get away just by replacing the caged ball bearings if the cups and cones are not badly pitted and scored. I think you can still buy the bearings alone rather than the full kit.

I’ve used this alloy axle hub in Record form on my tourer for around 20 years, plus near identical Neutron and Nucleon hubs on my road bikes, and I’ve only had to replace a couple of caged bearings on the rear drive side because the balls had lost their shine. No problems with cups or cones which are still going strong. But I do service the hubs once a year. The ports in the older narrow body silver Record hubs make it easy to pump in grease regularly.

robbiet

Had a look at the hubs and cups n cones seem pretty clean. Bearings not so
Just going to buy some new bearings and see how we go.
Good vid on YouTube by Nid316_cycling on Zonda bearing change

thecycleclinic

mercia_man said:

I’d dismantle the hubs, clean and inspect them before splashing out on a full service kit and special tools. It’s simple to do - shortfall has provided a useful link. You may solve the roughness by cleaning, greasing and adjusting, although if you haven’t done any maintenance on these hubs in five years you will be lucky to fix it like that. But you might get away just by replacing the caged ball bearings if the cups and cones are not badly pitted and scored. I think you can still buy the bearings alone rather than the full kit.

I’ve used this alloy axle hub in Record form on my tourer for around 20 years, plus near identical Neutron and Nucleon hubs on my road bikes, and I’ve only had to replace a couple of caged bearings on the rear drive side because the balls had lost their shine. No problems with cups or cones which are still going strong. But I do service the hubs once a year. The ports in the older narrow body silver Record hubs make it easy to pump in grease regularly.

You can buy the bearings and all the parts individually but from my experience servicing customer hubs it all needs changing. Change the bearing and it may spin freely but it will spin with noise it should spin quietly and to get away with bearings alone you need to service before it sounds like or feels it needs it which not everyone does.

thecycleclinic

robbiet said:

Had a look at the hubs and cups n cones seem pretty clean. Bearings not so
Just going to buy some new bearings and see how we go.
Good vid on YouTube by Nid316_cycling on Zonda bearing change

If the serviced bearing spins with noise the cups and cones need doing to. If it spins quietly then fine i would almost wager money it won't. Sadly most people think spinning freely is good enough. These hubs can be so much better.

Everytime a customers wheel has come in i have tried changing bearings alone and find it spins freely but with noise, only to strip it all down and do it all properly. Only then does it spin freely and quietly regardless of how good the cups looked before hand. Don't settle for that will do. A service should return the hub to factory fresh or you have wasted your time and not improved matters in the long run.

david37

what is your labour charge to service the wheels including the cups?