Royce Ti BB bearings?

[kerryn]

Does anyone happen to know the type and size of bearing used in a mid '90s Royce Ti bottom bracket?

I finally removed mine from my Boulder as its bearings were shot (after 14 years!) and I updated the drivetrain of my bike with an e*thirteen crank and BB.

I may have a use for the BB on one of my kids bikes if I can find a cheap bearing replacement but it is not worth the cost to me to get official bearings from Royce.

If I can't find cheap bearings then the BB will end up in my "memorabilia bin"

 

[danson67]

I'd measure it up and get something from VXB

They look like one of the thin Metric 690* series, either 6902 (28mm OD 15mm ID, or 6903 (30mm OD 17mm ID)
You should be able to get two decent bearings for under 20 Dollars.

I'd happily buy it off you for the price of 2 Royce bearings...

All the best,

 

[ferrus]

specific NTN model supplied by Royce is 6903JRXLLU/2AS ..so a 6903

 

[FluffyChicken]

or if you really want to be sure, then send them an email/ phone etc
In big letter at the top of there page
http://www.royceuk.co.uk/Royce-Uk.html

 

[kerryn]

Useful information, thanks!

@danson67. Not sure I would sell the Royce, plus if you were to use it it would probably need new cups (as well as bearings) as these got a little beat when the BB was removed from the frame. Even with the Royce BB tool that I had to order from the UK (as none of the shops around here could get it out) after 13 years it was a little seized.

 

[bicyclebearing]

most of BB's uses two size ball bearings, one is 163110-2RS (ID 16 * OD 31 * H 10 mm), other is 173110-2RS (ID 17 * OD 31 * H 10 mm).

 

[FluffyChicken]

most of BB's uses two size ball bearings, one is 163110-2RS (ID 16 * OD 31 * H 10 mm), other is 173110-2RS (ID 17 * OD 31 * H 10 mm).

This specific to Royce?

I've not come across one using them, all mine (not royce) seem to use 61903 (17 30 7)