MTBiker Posted October 26, 2011 Share Hi I've been given a wheelset with American Classic Hubs and mavic x223 rims. The rims are a bit pinged and well used (3 epics will do that to them), so im looking to replace them with something lighter and hopefully similar strength.I ride mostly trail and XC , think of like the medium jumps in tokai.. I get that the Arch rims are stronger and therefore weigh more. I weigh 70 kg. Can i get away with buying a pair of crest rims, or they just for xc racing and minimal trail riding. i dont want to break a new expensive rim set in a few months..I'm wanting to start putting more time into marathon riding and so lightness is wanted. or should i just buy some dt swiss revolution spokes to negate the weight gain of the arch rims Thanks Mike Link to comment Share on other sites More sharing options...
MrJacques Posted October 26, 2011 Share I think the weight difference is 90g per rim for the Arch vs Crest. You are well under the max weight limit of 85kg for the Crest rims, but seeing that you do some light jumping I'd say rather go for the stronger ones and have less worries about potentially breaking a rim. Have you considered the American Classic rims? Link to comment Share on other sites More sharing options...
splat Posted October 26, 2011 Share Have a look here: http://www.notubes.com/ZTR-Rims-C18.aspx for guidelines on riding style.@ 70kg you should be OK on Crests. Link to comment Share on other sites More sharing options...
Kranswurm Posted October 26, 2011 Share Not sure about 26er but it is virtually impossible to get a 2bliss tyre on and off the Crest 29er rim Link to comment Share on other sites More sharing options...
Pronutro Posted October 26, 2011 Share If you have only 1 wheelset, then Arch with revolution spokes. Crests are race wheels, they are nice to have as a second wheelset. Link to comment Share on other sites More sharing options...
Iwan Kemp Posted October 26, 2011 Share I've had two wheelsets build on Crest rims and they are super strong. Did jumps and drop offs with them and they never went out of true. I weigh 80kg. Having said that in the long run it's worth the extra weight for peace of mind. Remember its not just heavier, but also wider so can run a fatter tire with greater ease. Crests: 370gArch: 420gFlow 470g Add 30g for white rims. There's a new Arch coming that'll drop to 400g. Link to comment Share on other sites More sharing options...
Master216 Posted October 27, 2011 Share Crest Link to comment Share on other sites More sharing options...
MTBiker Posted October 27, 2011 Share I've had two wheelsets build on Crest rims and they are super strong. Did jumps and drop offs with them and they never went out of true. I weigh 80kg. Having said that in the long run it's worth the extra weight for peace of mind. Remember its not just heavier, but also wider so can run a fatter tire with greater ease. Crests: 370gArch: 420gFlow 470g Add 30g for white rims. There's a new Arch coming that'll drop to 400g. Website shows them as being the same width, the arch rim is just a bit deeper... Link to comment Share on other sites More sharing options...
Chubba Posted October 27, 2011 Share I have Crest rims, weigh 85kgs and have never had an issue. Don’t take big jumps tho, but ride lots on technical single track. Link to comment Share on other sites More sharing options...
Johan Bornman Posted October 27, 2011 Share Hi I've been given a wheelset with American Classic Hubs and mavic x223 rims. The rims are a bit pinged and well used (3 epics will do that to them), so im looking to replace them with something lighter and hopefully similar strength.I ride mostly trail and XC , think of like the medium jumps in tokai.. I get that the Arch rims are stronger and therefore weigh more. I weigh 70 kg. Can i get away with buying a pair of crest rims, or they just for xc racing and minimal trail riding. i dont want to break a new expensive rim set in a few months..I'm wanting to start putting more time into marathon riding and so lightness is wanted. or should i just buy some dt swiss revolution spokes to negate the weight gain of the arch rims Thanks Mike The notion of "breaking" a rim is a bit of a misnomer. Rims only break i.e. the metal tears, in fatigue (at the spoke holes after many years of riding) or, from violent impact. The type of impact that will break a rim will in anyway destroy other stuff as well, so having a rim break when your neck, frame and teeth are also broken, isn't a big deal. Besides, that type of impact will break any rim, no matter the weight. Further, jumping off stuff, unless the tyre bottoms out, will not damage the rim. It flexes inwards and flattens, at the contact patch only, with no other stress elsewhere, including on the spokes and spoke holes. The notion of jumping with a bike and have the spokes tear out the top of the wheel (i.e. opposite the contact patch) is not what happens in reality. Therefore, Crest rims will be strong enough for what you want to do. Where they will fail quicker than a heavier version of the same type of rim (same material, similar profile) is by not lasting as long before cracking at the spoke holes and, in accidents where there is considerable sideways force on the rim. Crest rims have a particular weak spot and that is it dents easily when the tyre bottoms out. I estimate that 20% of my Crest customers have a come-back within the first three months with a dented rim. Each and every time the issue was soft tyres and a dented rim. They are particularly weak in this regard, mostly because the lack of bead sidewall. The dent is therefore directed directly to the body of the rim where it is difficult to repair. Crests will be fine for you, but avoid the temptation of too low tyre pressure. Link to comment Share on other sites More sharing options...
Thug Posted October 27, 2011 Share A similar topic was started on MTBR earlier today but on Arch vs Flow. http://forums.mtbr.com/29er-bikes/stans-rims-ztr-arch-vs-ztr-flow-747391.html Link to comment Share on other sites More sharing options...
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