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Topic: k2 proflex evo 4 (Read 5084 times)
timber 2114
Novice
Posts: 28
Karma: 1
k2 proflex evo 4
«
on:
September 24, 2014, 06:27:43 am »
hi just finished building my k2 proflex evo 4, has any one come across the chain rubbing on swinging arm when its on the large cog at front and the two largest gogs on the rear , this is a 9 speed gog on rear any ideas would be greatful thanks.
«
Last Edit: September 25, 2014, 11:09:31 am by timber 2114
»
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proflex k2 evo 4
proflex flyin monkey
proflex 657
merida matts 1500 lite
giant revel 3
Colin
Guru
Posts: 1244
Karma: 14
in a village near Northampton, UK
Re: k2 proflex evo 4
«
Reply #1 on:
September 24, 2014, 08:10:59 am »
I've got a 4000se which is essentially the same as an Evo 4.0 (I'm pretty certain) and no I don't get this problem, as it will in theory achieve all gear combinations, but Large to Large is deffo not a recommended "real world" gear option, too much lateral force on the chain and other components, so if this is the only problem then you could just live with it and don't use that gear combination(s)
But.......the cause could be the use of the wrong Bottom Bracket or a too large Big Ring......?
The original BB was a 73 x 113, with a Shimano Deore LX or XT, 22/32/42 teeth crankset.
but this could be different if you're using a different Crankset.
http://www.bikepedia.com/quickbike/BikeSpecs.aspx?year=2000&brand=K2&model=EVO+4.0
So, what have you got on it?
Col.
«
Last Edit: September 24, 2014, 08:14:02 am by Colin
»
Logged
2001 OzM
2000 OzX
1999 x500
1999 900 Frame
1998 4000se
1998 4000
1997 957 Frame
1997 857 Frames
1997 XP-X (856)
1995/6 x55/x56 Frame
1992 962 Frame
1991 Marin Pine Mountain with a Flex Stem
timber 2114
Novice
Posts: 28
Karma: 1
Re: k2 proflex evo 4
«
Reply #2 on:
September 24, 2014, 12:50:47 pm »
ok thanks i will have a look , had a quick look its a truvativ x flow on the front 22/32/42 and a sram 11 to 32 will have a better look at weekend cheers dave.
«
Last Edit: September 25, 2014, 11:10:24 am by timber 2114
»
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proflex k2 evo 4
proflex flyin monkey
proflex 657
merida matts 1500 lite
giant revel 3
Spokes
Guru
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Karma: 11
Re: k2 proflex evo 4
«
Reply #3 on:
September 26, 2014, 03:13:10 pm »
I had this problem with the OZ I just built. I first fitted an 11/34 rear cassette but the chain hit the swingarm. I swopped it for a 11/32 and it just clears by about 5mm. I think it's due to the Fox rear shock I'm using which is slightly longer than standard. Front is 22/32/42 so in theory either cassette should have fitted as the OZm had a 12/34 cassette as standard so it must be due to the shock.
Have you changed out your rear shock?
Chris
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4000
857
856's
OZx modern build
757
4500
957
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no room in big shed but always room for one more!
timber 2114
Novice
Posts: 28
Karma: 1
Re: k2 proflex evo 4
«
Reply #4 on:
September 27, 2014, 12:48:08 am »
no the rear is still a noleen nr2 i think will check that, going to have a look this weekend it had a 11/34 on when i got it and a race face crank but they were past there best, but it seemed ok with them on mybe i should have look closer before getting rid of them cheers
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proflex k2 evo 4
proflex flyin monkey
proflex 657
merida matts 1500 lite
giant revel 3
Colin
Guru
Posts: 1244
Karma: 14
in a village near Northampton, UK
Re: k2 proflex evo 4
«
Reply #5 on:
September 29, 2014, 02:15:37 am »
Sounds to me like a case of getting the right BB for the "new" crank to get the chainline correct as per original.
Still running the NR-4 on the Missus' OzX, but will aim to swap for an RP23 in the winter. and then see if anything changes........
Col.
Logged
2001 OzM
2000 OzX
1999 x500
1999 900 Frame
1998 4000se
1998 4000
1997 957 Frame
1997 857 Frames
1997 XP-X (856)
1995/6 x55/x56 Frame
1992 962 Frame
1991 Marin Pine Mountain with a Flex Stem
Spokes
Guru
Posts: 981
Karma: 11
Re: k2 proflex evo 4
«
Reply #6 on:
September 29, 2014, 02:55:12 pm »
Hmm I'm running a XT Hollow tec 2. It's definitely spaced correctly for the frame as per instructions but I wonder if that is the reason? I'll try some measurements when I'm in the shed next.
Chris
Logged
4000
857
856's
OZx modern build
757
4500
957
955
5000
no room in big shed but always room for one more!
Colin
Guru
Posts: 1244
Karma: 14
in a village near Northampton, UK
Re: k2 proflex evo 4
«
Reply #7 on:
September 30, 2014, 05:58:21 am »
Just checked on the OzX and to be honest the clearance on 46/34 combo is just about 1mm....!!
That's when the bike is unloaded, but if the RP23 is just slightly longer I can see it could cause issues if this gear combo was ever used (V. Unlikely!)
I knew all gears were achievable, but didn't check just how close it was!
Col.
Logged
2001 OzM
2000 OzX
1999 x500
1999 900 Frame
1998 4000se
1998 4000
1997 957 Frame
1997 857 Frames
1997 XP-X (856)
1995/6 x55/x56 Frame
1992 962 Frame
1991 Marin Pine Mountain with a Flex Stem
Spokes
Guru
Posts: 981
Karma: 11
Re: k2 proflex evo 4
«
Reply #8 on:
September 30, 2014, 03:11:37 pm »
Yep that was my problem and under load you hear the nasty sound of chain against carbon. Like a saw!
Chris
Logged
4000
857
856's
OZx modern build
757
4500
957
955
5000
no room in big shed but always room for one more!
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k2 proflex evo 4