Shimano BB-UN71 Bottom Bracket modern equivalent.

[Trebz]

Hey

Does anyone know of a Shimano BB-UN71 Bottom Bracket modern equivalent. Same weight or similar.

Ta

Trebz

 

[fearfactoryüberalles]

Which size do you need? I'd choose from the IRD range: QB75 or QB95, pricey but for a reason. Or the Tange-Seiki LN 7922, but both brands/modells can be cumbersome to get, I guess.

 

[Trebz]

Iv'e not measured up yet but it's for a 1993 Saracen Race Elite. I think I'm going to build it up as my beater XC bike.

 

[ishaw]

Re:

Depending on size, I may have a decent one spare. Also have a ti bb that has replaceable sealed bearings I'm not currently using.

 

[legrandefromage]

UN73?

https://www.ebay.co.uk/itm/Shimano-Inne ... SwCr9eqGnO

73mm shell UN55

https://www.ebay.co.uk/itm/Shimano-UN55 ... SwuLpdYRRY

 

[mk one]

^^^^this^^^^

i still see quite a few new ones popping up on ebay, unless you actually want a moderner one.

 

[fearfactoryüberalles]

UN55 is crap (especially on desirability), doesn't even come close, but if all else fails, heck, why not?

 

[fearfactoryüberalles]

Youngest UN71s are 25+ years old so even if dried lubrication isn't a factor, I'd be aware of their age, as you can't repack them anyway, well, not in an easy way...

 

[Rod_Saetan]

Which size do you need? I'd choose from the IRD range: QB75 or QB95, pricey but for a reason. Or the Tange-Seiki LN 7922, but both brands/modells can be cumbersome to get, I guess.

The IRD BBs I’ve had have been rubbish and did not last well, the Tange are excellent though and I would consider them a modern version of the UN7* - well sealed bearings, alloy cups, hollow axle.

 

[Woz]

https://www.tokenproducts.com/bottom-br ... re-taper-1