does the ISIS really make that much of a difference?

señor coolguy · 2007-10-01, 11:33 PM

I'm planning on buying a nimbus 29'', and I saw that they came out with a new ISIS variant which is about $20 more. Is this worth it, and would it really help all that much, since most people don't usually do a lot of crazy "high stress" stuff on a 29?

ISIS one: http://www.unicycle.com/shopping/shopexd.asp?id=1064

NKahler · 2007-10-01, 11:38 PM

Im not sure.. But since its only $20 more, it seems like a good deal

I think there is a lot of stress when you go fast.. Im not sure though

skrobo · 2007-10-01, 11:44 PM

lol
nah, there is less stress when you go fast.

square tapers suck though... i'm sure you know this already. the ISIS hub should be incredibly strong, and have more good cranks for choosing with less chance of stripping/wearing out anything.

NKahler · 2007-10-02, 12:06 AM

Quote:

Originally Posted by skrobo

lol
nah, there is less stress when you go fast.

square tapers suck though... i'm sure you know this already. the ISIS hub should be incredibly strong, and have more good cranks for choosing with less chance of stripping/wearing out anything.

Well I mean like starting and stopping, it seems like it would put twisting stress on it

skrobo · 2007-10-02, 12:13 AM

not NEARLY enough to damage anything unless you weigh like 250# and slam the cranks as hard as possible when stopping.

Brian O. · 2007-10-02, 12:14 AM

The ISIS hub to crank interface is just far superior to the cotterless design. Sure its stronger but its also less likely to have a crank loosen or strip out which in time can and will happen. For $20 it is certainly worth the upgrade in my opinion, no question about it.

saskatchewanian · 2007-10-03, 12:55 AM

I would go with the ISIS model since the difrence is so minor especaly now that you can get QU-AX freestyle cranks for cheep in a good variety of lengths.

I have had square taper cranks get loose after a few good falls on pavement

señor coolguy · 2007-10-03, 01:04 AM

sounds good, guys. Thanks for all the replies

yatsey · 2007-10-03, 09:50 PM

I'd go splined. I work in a bike shop and I've seen people even bring in town and trail bikes that arn't even that old with rounded cotterless'. I'd say it's worth it for that little amount of money.

peleschramm · 2007-10-04, 04:46 PM

yea i would go for isis. those just stay on a lot better.

kington99 · 2007-10-04, 05:17 PM

ISIS is the way forward, fairly soon all UDC nimbus unicycles except the 36ers will have UDC ISIS hubs. BUying in to old technology at this point would seem silly, especially for so little money.

Borgschulze · 2007-10-06, 05:21 AM

Quote:

Originally Posted by yatsey

I'd go splined. I work in a bike shop and I've seen people even bring in town and trail bikes that arn't even that old with rounded cotterless'. I'd say it's worth it for that little amount of money.

I bent a Shimano Square Taper bottom bracket last week with really cheap aluminum cranks.

I'm not 100% sure if the cranks are good still, but I know for sure the bottom bracket is toast now, quite a bend in it.

All this from jumping a 3 set of stairs... with a good soft landing too.

2007-10-01, 11:33 PM	#1
señor coolguy most bodacious Join Date: Jun 2007 Location: Bernardsville, NJ Age: 19 Posts: 224	does the ISIS really make that much of a difference? I'm planning on buying a nimbus 29'', and I saw that they came out with a new ISIS variant which is about $20 more. Is this worth it, and would it really help all that much, since most people don't usually do a lot of crazy "high stress" stuff on a 29? ISIS one: http://www.unicycle.com/shopping/shopexd.asp?id=1064 Last edited by señor coolguy; 2007-10-01 at 11:35 PM.

2007-10-01, 11:44 PM	#3
skrobo jumps stuff Join Date: May 2006 Location: Corpus Christi TX Age: 24 Posts: 4,426	lol nah, there is less stress when you go fast. square tapers suck though... i'm sure you know this already. the ISIS hub should be incredibly strong, and have more good cranks for choosing with less chance of stripping/wearing out anything. __________________ ><> Unicycle For Christ <>< MY VIDEOS World Record 94cm Highest Hop (rolling) 308cm Longest Hop (10 feet) 210cm Static Flat Gap

2007-10-02, 12:13 AM	#5
skrobo jumps stuff Join Date: May 2006 Location: Corpus Christi TX Age: 24 Posts: 4,426	not NEARLY enough to damage anything unless you weigh like 250# and slam the cranks as hard as possible when stopping. __________________ ><> Unicycle For Christ <>< MY VIDEOS World Record 94cm Highest Hop (rolling) 308cm Longest Hop (10 feet) 210cm Static Flat Gap

2007-10-02, 12:14 AM	#6
Brian O. Team Spencer Photographer Join Date: Sep 2005 Posts: 3,868	The ISIS hub to crank interface is just far superior to the cotterless design. Sure its stronger but its also less likely to have a crank loosen or strip out which in time can and will happen. For $20 it is certainly worth the upgrade in my opinion, no question about it. __________________ Get cool unicycle posters, pins and more! All products are my personal photography. * New Poster 11/16/2010 *

2007-10-03, 12:55 AM	#7
saskatchewanian ERIC P Join Date: Jan 2007 Location: Denare Beach, Saskatchewan, Canada Age: 27 Posts: 5,244	Get the splined model I would go with the ISIS model since the difrence is so minor especaly now that you can get QU-AX freestyle cranks for cheep in a good variety of lengths. I have had square taper cranks get loose after a few good falls on pavement __________________ My friends, love is better than anger. Hope is better than fear. Optimism is better than despair. So let us be loving, hopeful and optimistic. And we’ll change the world. - Jack Layton

2007-10-03, 01:04 AM	#8
señor coolguy most bodacious Join Date: Jun 2007 Location: Bernardsville, NJ Age: 19 Posts: 224	sounds good, guys. Thanks for all the replies

2007-10-03, 09:50 PM	#9
yatsey Registered User Join Date: Mar 2007 Posts: 81	I'd go splined. I work in a bike shop and I've seen people even bring in town and trail bikes that arn't even that old with rounded cotterless'. I'd say it's worth it for that little amount of money. __________________ Where the speechless unite in a silent in a silent accord

2007-10-04, 04:46 PM	#10
peleschramm Team Spencer second in command Join Date: Jan 2007 Location: Sammamish, WA Age: 21 Posts: 3,518	yea i would go for isis. those just stay on a lot better.

2007-10-04, 05:17 PM	#11
kington99 Registered User Join Date: Mar 2005 Location: Warwickshire, UK Age: 27 Posts: 4,786	ISIS is the way forward, fairly soon all UDC nimbus unicycles except the 36ers will have UDC ISIS hubs. BUying in to old technology at this point would seem silly, especially for so little money. __________________ Dave - what a thoroughly post-modern subversion of the cycling genre -

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