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PostPosted: Fri Dec 06, 2019 9:13 pm 
King of the DuckBoard
King of the DuckBoard
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Joined: Sun Jan 28, 2007 12:30 pm
Posts: 21257
Location: 26 the only wheel size
Baulz wrote:
I feel like I'm one part failure away from the bike being done, the Kooka BB finally gave up and it took me a year to get a Race Face cromo axle BB in to replace it. I have a few old UN-52's but the bike deserves better than that. With kids and a fleet of 10 bikes (just for me) it's hard to justify spending big money on replacement parts knowing something else may wear our next.


If your worried about replacing parts!! then don't ride and have a garage queen. SJS cycles or spar cycles have a large range parts of all types for speeds/wheel size. Perhaps reduce the number of bikes? Or just ride and enjoy. I'm told we only live once?


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PostPosted: Fri Dec 06, 2019 9:56 pm 
BoTM Winner
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Joined: Fri Dec 28, 2007 9:50 pm
Posts: 422
Location: Ontario, Canada
hamster wrote:
Baulz wrote:
I feel like I'm one part failure away from the bike being done, the Kooka BB finally gave up and it took me a year to get a Race Face cromo axle BB in to replace it. I have a few old UN-52's but the bike deserves better than that. With kids and a fleet of 10 bikes (just for me) it's hard to justify spending big money on replacement parts knowing something else may wear our next.


I'm puzzled about what you say: the Kooka BB I have uses stock industrial bearings, available from any bearing factor for around £5. Likewise the Shimano UN91 can be repaired in the same way. UN72s seem to last me upwards of 10,000 miles.

I've swapped to Phil Wood and Superstar hubs on my main ride, which take stock bearings, although I had to retire the Hope rear hub on my singlespeed after I bent the axle...but it was 25 years old.


The bearings are still fine, where the drive and non-drive cups press against each other must have worn and the BB will always have play. I'm sure with some Loctite I might be able to make it hold, but the BB tool interface got stripped on one side years ago so I don't want it in too tight.


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PostPosted: Fri Dec 06, 2019 10:01 pm 
BoTM Winner
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Joined: Fri Dec 28, 2007 9:50 pm
Posts: 422
Location: Ontario, Canada
tintin40 wrote:
Baulz wrote:
I feel like I'm one part failure away from the bike being done, the Kooka BB finally gave up and it took me a year to get a Race Face cromo axle BB in to replace it. I have a few old UN-52's but the bike deserves better than that. With kids and a fleet of 10 bikes (just for me) it's hard to justify spending big money on replacement parts knowing something else may wear our next.


If your worried about replacing parts!! then don't ride and have a garage queen. SJS cycles or spar cycles have a large range parts of all types for speeds/wheel size. Perhaps reduce the number of bikes? Or just ride and enjoy. I'm told we only live once?


It's no garage queen, I have ridden the sh*t out of this bike for years. Every part has been replaced several times, it's has been an evolving build for 20 years. 4 frames, 2 forks, 4 headsets, 4 stems, 5 seatposts, countless wheel builds, 10+ pairs of tires, etc.

I broke down and bought a 29er in 2015, and it sat for a couple years while I continued to ride my favorite bike.

Reducing the number of bikes is very possible, and this one is a possibility. The other is another 26er with leftover parts built specifically for towing the kids in the trailer which they have outgrown.


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PostPosted: Fri Dec 06, 2019 10:56 pm 
Gold Trader / MacRetro rider
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Joined: Sun May 25, 2008 11:03 am
Posts: 19523
Location: Sunny Bournemouth
Any1 want to buy a pile of nos 26" rims ? :lol: :lol:


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 Post subject: Re:
PostPosted: Fri Dec 06, 2019 11:05 pm 
Retro Guru
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Joined: Mon Jul 27, 2009 8:21 pm
Posts: 735
maybe, do you have something interesting?


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PostPosted: Sat Dec 07, 2019 6:57 am 
Retro Guru
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Joined: Wed Mar 26, 2014 5:58 am
Posts: 824
Location: Wild-wild-wild-EAST
hamster wrote:

I'm puzzled about what you say: the Kooka BB I have uses stock industrial bearings, available from any bearing factor for around £5. Likewise the Shimano UN91 can be repaired in the same way. UN72s seem to last me upwards of 10,000 miles.

I've swapped to Phil Wood and Superstar hubs on my main ride, which take stock bearings, although I had to retire the Hope rear hub on my singlespeed after I bent the axle...but it was 25 years old.


Hmm, could you be a bit more specific about overhauling the bearings on UN91 BBs, please? I've only met with "bearing balls located directly in axle'groove" type Shimano old-school cartridge sq.taper BBs so far, thus redering these parts FUBAR/broken when opened by any special method on earth.

Maybe the UN90 series used generic, removable cartridge bearings?


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PostPosted: Sat Dec 07, 2019 7:07 am 
Retro Guru

Joined: Fri May 15, 2015 4:57 pm
Posts: 2250
dyna-ti wrote:
Any1 want to buy a pile of nos 26" rims ? :lol: :lol:


What kind of rims? :?:


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PostPosted: Sat Dec 07, 2019 7:40 am 
King of the Skip Monkeys
King of the Skip Monkeys

Joined: Wed Nov 07, 2007 4:34 pm
Posts: 32421
k-rod wrote:
dyna-ti wrote:
Any1 want to buy a pile of nos 26" rims ? :lol: :lol:


What kind of rims? :?:


Round ones will be a good start.


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PostPosted: Sat Dec 07, 2019 9:36 am 
King of the DuckBoard
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Joined: Sun Jan 28, 2007 12:30 pm
Posts: 21257
Location: 26 the only wheel size
legrandefromage wrote:

Round ones will be a good start.



But they roll down hill :lol: carry on Cleo


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PostPosted: Sat Dec 07, 2019 12:12 pm 
Retro Guru
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Joined: Thu May 15, 2014 11:56 pm
Posts: 1994
Location: Dinas Powys
legrandefromage wrote:
k-rod wrote:
dyna-ti wrote:
Any1 want to buy a pile of nos 26" rims ? :lol: :lol:


What kind of rims? :?:


Round ones will be a good start.


:lol: made me chuckle


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