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Trialtech Carthy Signature Series Rims




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Old 05-19-2017, 07:42 AM   #1
Mark W
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Trialtech Carthy Signature Series Rims

Trialtech have just released their Carthy Signature Series rims. Available in 26" only, 32h front and rear.

Double wall and undrilled so they're ridiculously stiff and should provide a stiffer sidewall for better braking performance too. Carthy's keen on them (and has been since we built up his first set of rims for him a while back), and a few other top riders have been helping test them too.

Weight for the rear is 577g, front is 464g, so not a million miles off other rims either despite being better in most ways.

Trialtech put out a video just now on FB about some of the features of them: https://www.facebook.com/trialtech/videos/1330536986982743/

General overview of them:

Trialtech Carthy Signature Series Rims - Observed Trials Discussion

Trialtech Carthy Signature Series Rims - Observed Trials Discussion

Trialtech Carthy Signature Series Rims - Observed Trials Discussion

Trialtech Carthy Signature Series Rims - Observed Trials Discussion


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Old 05-19-2017, 09:32 AM   #2
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Whoa , no holes . Carthy is just that good haha


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Old 05-19-2017, 09:45 AM   #3
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I don't understand these. In the videos it looks like he's got big ol' holes in his rims, and it seems like everyone is running singlewall and drilled out, so what is new and exciting about what looks like an older design? I like the beefed up spoke holes, but that seems like the only step forward. Do they at least come in really fancy boxes that you guys think indicates good products?

Edit, by videos I mean the actual riding ones of late, not the half clip in the promo video which shows nothing.
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Old 05-22-2017, 02:14 PM   #4
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Surely an 'old' design is just using the same cut-outs as each other from the same rims from the same catalogue? This is totally new, designed from the ground up. They're only 50~g heavier than the lightest single wall rims out there, but a shitload stronger and stiffer. Both Jack and Gilles have said they're surprised by how much different it's made their bikes feel. Carthy's been running them for the entire off season (we posted up photos of the rims we laced up for him ages ago, he's been on the same set since), but because he's been out of the spotlight the only video is the longer "Inside with Jack Carthy" one that that clip in the promo video was taken from. Because of how much the UCI World Cup style of riding canes front wheels he used to blitz through them pretty fast, but has been on the same one of these rims for time.

I guess if you're a fan of catalogue single wall rims that are flexy, not super strong and made from the same average material then they're probably not for you, but if you wouldn't mind a stronger rim that has better braking performance then they're worth a look.
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Old 05-22-2017, 03:19 PM   #5
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You got me hooked now. Please explain how these are a higher quality material. They may well be but simply saying "high quality" or "aerospace grade aluminum" is marketing rubbish. So they are a different profile which means they are extruded on a different machine, but what are the odds that they are not made from the same raw aluminum as a lot of other rims that go through that factory? And are they heat treated to a different specification? That would make a whole lot of difference. Again they might be the next best thing, but right now all I see is marketing fluff words.
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Old 05-23-2017, 03:36 AM   #6
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Quote:
Originally Posted by Mark W View Post
I guess if you're a fan of catalogue single wall rims that are flexy, not super strong and made from the same average material then they're probably not for you, but if you wouldn't mind a stronger rim that has better braking performance then they're worth a look.
i dont know... i'm kind of a fan of not paying ~75€ for one rim, when i could easily pay half of that (at least a few years ago) and ride the rim for 5-7 years



edit:
also, making a better rim than the 1st gen. single wall Trialtech rim can't be that hard, can it?
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Old 05-23-2017, 11:32 AM   #7
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modtire, thought I'd add a little more background info on these rims, there's a limit to how much we can/try to get across when we launch a new product. We don't want to bore people with too much detail all in one big hit. But hopefully you'll find this of interest:

The factory we work with for these rims do not make any other trials rims. They specialise in high-end after market rims, especially for downhill and freeride, as opposed to the larger quantity products put on to complete bikes. Their main business is high tolerance (sub 0.04mm on a given wall thickness) extrusions for various industries, including some of the most famous after market rim manufacturers.

The material is 6061 and as you rightly pointed out, the heat treatment makes a big difference. The heat treating techniques for these rims are subtly different to most, giving a more consistent and stable final product, albeit one that is not as easy nor as cheap to manufacture. While I did the section design myself I left the heat treatment specs in the hands of the experts at the factory.

Monty99, if you can make a 40€ rim last 5-7 years and you are happy with how it performs and the weight of it then I would say you're on to a winner and stick with those rims. I would openly admit these are not cheap rims to buy, but nor are they cheap to manufacture or develop. For riders who are not happy with the performance of their single wall rims of a similar weight these could be a very worthwhile purchase. As Mark mentioned, other than Jack getting through some narrow single wall front rims he used he never had any complaints about his rims or wheels, either before or after we started to work with him. However, when both Carthy and Gilles started using the rims they instantly felt a difference in their bikes. Our workbench based stiffness comparison was a quick way to illustrate the performance difference on paper, but I'm happy to say that the feedback we've had from riders has correlated really well and in some instances surpassed the basic stiffness comparison!

With these rims we didn't aim to make a rim that was only better than our first generation single wall rims, the intention was to make a rim that for their weight out performs any other trials rim on the market, regardless of brand. Hopefully we have achieved just that.
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Old 05-23-2017, 11:58 AM   #8
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TT, thanks for the info, some of us do want all the details. As a metals guy I get frustrated with the hype dished out to the masses on things like this so I was curious what the substance of it was.
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Old 05-23-2017, 12:20 PM   #9
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Not a problem, glad you appreciate the finer details of the materials side. I'm sure you'll agree that 6061 from one source can also be rather different to a theoretically identical grade from another source. You do get what you pay for with these rims.
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Old 05-24-2017, 08:43 PM   #10
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I love the look of the rims with no holes.

I would definitely pick one up, once I need to replace my Jetset double wall rim.


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