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Latest discussions at Pit Bike Club:
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23-02-2010, 12:00 AM
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#1
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Join Date: Jun 2009
Location: denton,manchester
Age: 33
Posts: 1,643
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Headstock bearings
who has ever changed theere bearings on a masai, all i need is the bottom bearing ive measured my old one and its 24mm I.D and 38mm O/D
i cant find these anywhere , there for a 5.5" headstock, the closest i can find are these
http://www.pitbikeparts.co.uk/taper-...ter-p-503.html
possibly the correct ones
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23-02-2010, 12:14 AM
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#2
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superpit1337
Join Date: Oct 2006
Location: England
Age: 36
Posts: 20,508
Bike: CRF70/CRF50base
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Re: Headstock bearings
J.I.M!! OH J.I.M!!
thats a weird size, im guessing what happening is those forks arnt made for that headstock, however i know theres a solution in terms of finding this bearing size.
what id do is get on the fone to a few bearing companies, tell them what you and no doubt they be able to get it, even if its an odd size and have to order it/have it made
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23-02-2010, 12:22 AM
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#3
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Join Date: Jun 2009
Location: denton,manchester
Age: 33
Posts: 1,643
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Re: Headstock bearings
yea ill try it, or ... ive just rememberd... the bearing im measureing , which is the bottom one had "gone/broken" all the rollers are missing so it could of lost shape resulting to what im measuring is the wrong size, ive got the forks sorted now, they were designd for 6.25" even tho i was sold them for 5.5" which im not happy about, but ive just changed the stem and they fit nicely now, the top bearing fits sweet into the inbuit cup , justt the bottom bearing which is made for the cups i were given with the new fork doesnt fit the "inbuilt" cups of my headstock
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23-02-2010, 12:33 AM
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#4
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superpit1337
Join Date: Oct 2006
Location: England
Age: 36
Posts: 20,508
Bike: CRF70/CRF50base
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Re: Headstock bearings
Quote:
Originally Posted by bennell09
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could be what you need, only you can determine that
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23-02-2010, 12:40 AM
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#5
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Join Date: Jun 2009
Location: denton,manchester
Age: 33
Posts: 1,643
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Re: Headstock bearings
Quote:
Originally Posted by Despise
could be what you need, only you can determine that
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just had a thought, the bearing isnt going to be going fully into the heastock anyway , the very bottom of the headstock will align with the bottom of the bearing (widest part) so it will be that size , dumb me
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23-02-2010, 12:44 AM
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#6
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superpit1337
Join Date: Oct 2006
Location: England
Age: 36
Posts: 20,508
Bike: CRF70/CRF50base
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Re: Headstock bearings
Quote:
Originally Posted by bennell09
just had a thought, the bearing isnt going to be going fully into the heastock anyway , the very bottom of the headstock will align with the bottom of the bearing (widest part)
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thats right, the outer edge will be sitting on the clamp
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23-02-2010, 12:47 AM
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#7
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Join Date: Jun 2009
Location: denton,manchester
Age: 33
Posts: 1,643
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Re: Headstock bearings
hopefully this is the measuring problem, there quite dear too need to find the bearing number and only buy 1
cheers bud
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23-02-2010, 12:50 AM
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#8
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superpit1337
Join Date: Oct 2006
Location: England
Age: 36
Posts: 20,508
Bike: CRF70/CRF50base
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Re: Headstock bearings
Quote:
Originally Posted by bennell09
hopefully this is the measuring problem, there quite dear too need to find the bearing number and only buy 1
cheers bud
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good luck
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23-02-2010, 06:06 AM
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#9
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PBC Legend
Join Date: May 2009
Location: Where ever i leave my hat
Posts: 7,794
Bike: A big pumpkin
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Re: Headstock bearings
You'll need the inside measurement of the bearing (so it'll fit the stem)
The outside of the cup (to fit into the headstock)
And the thickness (how deep it's going into the headstock)
There's a bearing supplier local to us, i just take my old ones down and they'll match them up.
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23-02-2010, 05:36 PM
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#10
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Track Master
Join Date: Dec 2009
Location: Birmingham, England
Age: 32
Posts: 301
Bike: Xsport 125
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Re: Headstock bearings
here you go.
http://cgi.ebay.co.uk/Pit-Bike-Heads...item2305206b5d
These are the ones i used when changing from standard forks to usds on my xsport.
And im sure the masai and the xsport have the same frame?
(correct me if I'm wrong)
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