full chainguard problem
#1
Thread Starter
Steel is real
Joined: Dec 2014
Posts: 772
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From: Australia
Bikes: Custom - Record Vortex 8 spd Nexus & Mistral Le Mans 3 spd Shimano. Giant Kronos. Raliegh Single Speed
full chainguard problem
i searched around the net but i couldn't find advice anywhere, so here goes
i'm sure there's somebody here who could help us out to remove this chainguard
i picked up this bike today, the owner said it was bought new...frera... in italy about 10 years ago... then brought it over here in oz
i need to remove the chainguard to get to the BB, she's loose, plus.. it makes a racket [see dent on the bottom]
the rear part could be un-screwed, there appears to be no attachments anywhere else, like it just sits there floating
& it looks like it's in two pieces, hope it ain't pressed on



i'm sure there's somebody here who could help us out to remove this chainguard
i picked up this bike today, the owner said it was bought new...frera... in italy about 10 years ago... then brought it over here in oz
i need to remove the chainguard to get to the BB, she's loose, plus.. it makes a racket [see dent on the bottom]
the rear part could be un-screwed, there appears to be no attachments anywhere else, like it just sits there floating
& it looks like it's in two pieces, hope it ain't pressed on
#3
Thread Starter
Steel is real
Joined: Dec 2014
Posts: 772
Likes: 18
From: Australia
Bikes: Custom - Record Vortex 8 spd Nexus & Mistral Le Mans 3 spd Shimano. Giant Kronos. Raliegh Single Speed
#4
Thread Starter
Steel is real
Joined: Dec 2014
Posts: 772
Likes: 18
From: Australia
Bikes: Custom - Record Vortex 8 spd Nexus & Mistral Le Mans 3 spd Shimano. Giant Kronos. Raliegh Single Speed
well, the crank is lose but it won't come off, the inside of the chainguard is behind the BB nut
the most ridiculous set-up ive ever seen!
the most ridiculous set-up ive ever seen!
#5
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Joined: Aug 2005
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From: Pittsburgh, PA
Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!
It also looks to me like it's a pressed together and/or spot welded assembly and wasn't expected to ever be removed. Unless you are very intent on keeping this bike original, I think it's time for destructive removal.
#6
Thread Starter
Steel is real
Joined: Dec 2014
Posts: 772
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From: Australia
Bikes: Custom - Record Vortex 8 spd Nexus & Mistral Le Mans 3 spd Shimano. Giant Kronos. Raliegh Single Speed
had the same thoughts of bringing the tin snips out
it's something i'm going to flip anyway .... {i got the bike for free** there's another better design chainguard i could use from a scrap 26" bike
[i hoped someone here dealt with the same item who could show me how to un-plug it
Last edited by le mans; 01-18-16 at 09:16 AM. Reason: gramma
#7
Thread Starter
Steel is real
Joined: Dec 2014
Posts: 772
Likes: 18
From: Australia
Bikes: Custom - Record Vortex 8 spd Nexus & Mistral Le Mans 3 spd Shimano. Giant Kronos. Raliegh Single Speed
#8
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Joined: Apr 2015
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From: Morris County, NJ
Bikes: 90's Bianchi Premio, Raleigh-framed fixed gear, Trek 3500, Centurion hybrid, Dunelt 3-spd, Trek 800
I doubt that a manufacturer would have made a guard that prevents crankset removal, chain replacement, BB replacement, etc. It appears to have a seam or joint running around its outer edge. If there are no bolts, the inner and outer halves probably just snap together. You should be able to gently pry them apart. If they are stuck, apply penetrating oil around the seam. Then, remove the crank and chainring. With the chainring and outer guard off, you can unfasten the BB nut.
Last edited by habilis; 01-19-16 at 07:32 AM.
#9
Thread Starter
Steel is real
Joined: Dec 2014
Posts: 772
Likes: 18
From: Australia
Bikes: Custom - Record Vortex 8 spd Nexus & Mistral Le Mans 3 spd Shimano. Giant Kronos. Raliegh Single Speed
nah, the two halves don't snap apart..they're seam welded together... for good!
what i did discover... after destroying it with an angle grinder...a disk in front of the chainguard.. the size of the crank clicks out :tanti:
what i did discover... after destroying it with an angle grinder...a disk in front of the chainguard.. the size of the crank clicks out :tanti:







