Are these the lightest disc brake hubs? Tactic TR01 (aka Princeton Carbon)

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yinzerniner
Posts: 206
Joined: Tue Jun 13, 2017 8:54 pm

by yinzerniner

Seriously, I'm not sure how anyone would be comfortable with a hub that's lighter than a rotor but somehow these guys claim their new hubs at a combined weight of 215g for a set are as durable as more established players.

https://www.tacticracing.com/product/tr01/
https://cyclingtips.com/2021/12/princet ... -end-hubs/
https://www.gravelcyclist.com/bicycle-t ... ment-more/

Any thoughts? Seem like pros and schmoes alike love their wheels so at least the track record is strong.

by Weenie


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TobinHatesYou
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by TobinHatesYou

Using aluminum alloy for their ratchet ring seems kind of risky?

MarginalChains
Posts: 37
Joined: Thu May 05, 2016 10:08 am

by MarginalChains

TobinHatesYou wrote:
Thu Dec 16, 2021 10:12 pm
Using aluminum alloy for their ratchet ring seems kind of risky?
Rookie question perhaps, but why is that?

Mocs123
Posts: 826
Joined: Tue May 11, 2021 9:19 pm

by Mocs123

Really nice looking hubs but they are quite pricey.
2015 Wilier Zero.7 Rim - 6.37kg
2020 Trek Emonda SLR-7 Disc - 6.86kg
2023 Specialized SL7 - 7.18kg

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Matt28NJ
Posts: 259
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by Matt28NJ

MarginalChains wrote:
Fri Dec 17, 2021 12:53 am
TobinHatesYou wrote:
Thu Dec 16, 2021 10:12 pm
Using aluminum alloy for their ratchet ring seems kind of risky?
Rookie question perhaps, but why is that?
Depending on the grade of aluminum, it may be very soft.

MarginalChains
Posts: 37
Joined: Thu May 05, 2016 10:08 am

by MarginalChains

Matt28NJ wrote:
Fri Dec 17, 2021 1:40 am
MarginalChains wrote:
Fri Dec 17, 2021 12:53 am
TobinHatesYou wrote:
Thu Dec 16, 2021 10:12 pm
Using aluminum alloy for their ratchet ring seems kind of risky?
Rookie question perhaps, but why is that?
Depending on the grade of aluminum, it may be very soft.
Surely, one would hope when it's been made for and tested by Ineos, it would be strong enough to hold up? At that price too, I'd be pretty surprised if it was low grade material.

TobinHatesYou
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Joined: Mon Jul 24, 2017 12:02 pm

by TobinHatesYou

MarginalChains wrote:
Fri Dec 17, 2021 1:55 am

Surely, one would hope when it's been made for and tested by Ineos, it would be strong enough to hold up? At that price too, I'd be pretty surprised if it was low grade material.

They have a crew of mechanics, spare wheels and likely spare ratchet rings in case of failure.

Aluminum alloy HG freehub bodies get chewed up. Titanium and steel ones don't. Now there's more points of engagement in the star ratchet, so maybe it's fine??

Hexsense
Posts: 3269
Joined: Wed Dec 30, 2015 12:41 am
Location: USA

by Hexsense

They'll surely hold fine for a while. Definitely fit for the pro teams.
But if you are average rider who do no rear hub maintenance on regular basis, only taking hub apart when you notice a problem. That's a bit risky.

ghostinthemachine
Posts: 780
Joined: Thu May 07, 2015 9:18 pm

by ghostinthemachine

It's probably a consumable part.

TobinHatesYou
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Joined: Mon Jul 24, 2017 12:02 pm

by TobinHatesYou

ghostinthemachine wrote:
Fri Dec 17, 2021 8:23 am
It's probably a consumable part.

Replaceable? Yes. This is the case with most high-end hub ratchet rings.

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Miller
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Location: Reading, UK

by Miller

Matt28NJ wrote:
Fri Dec 17, 2021 1:40 am
MarginalChains wrote:
Fri Dec 17, 2021 12:53 am
TobinHatesYou wrote:
Thu Dec 16, 2021 10:12 pm
Using aluminum alloy for their ratchet ring seems kind of risky?
Rookie question perhaps, but why is that?
Depending on the grade of aluminum, it may be very soft.
...and your entire pedalling force gets transmitted through the few grams of metal constituting the ratchet ring.

ghostinthemachine
Posts: 780
Joined: Thu May 07, 2015 9:18 pm

by ghostinthemachine

TobinHatesYou wrote:
Fri Dec 17, 2021 12:04 pm
ghostinthemachine wrote:
Fri Dec 17, 2021 8:23 am
It's probably a consumable part.
Replaceable? Yes. This is the case with most high-end hub ratchet rings.
Yes, i know they are replaceable, one made out of aluminium is likely to be a consumable. Hopefully they include a couple of spares and the tool in the box ;)

MarginalChains
Posts: 37
Joined: Thu May 05, 2016 10:08 am

by MarginalChains

Likely a calculated decision then; I suspect most of the target market won't mind replacing the free hub body from time to time in return for the weight saving. Either that or their team mechanic looks after it all for them...

Butcher
Shop Owner
Posts: 1924
Joined: Sun Jan 03, 2010 4:58 am

by Butcher

I had a freewheel slip once, crashed, the guy behind me was left laying the road with a broken hip.

So, when do you replace this 'wear' item? When it's worn out? Might be too late and someone will be left in the road. Regular maintenance? Sounds costly to me. I like technology and I do understand that engineers understand that soft aluminum is not a place for this ratchet. I would not be the first to buy and be waiting to see if the storm is brewing or not. Heck, I would have to buy a disc brake frame first.

Plus the fact, when one of the first complaints that it's loud, I'm out. Loud is not a selling point for me. Yes, I know there are plenty that like it and I can respect your opinion with that.

WorkonSunday
Posts: 540
Joined: Tue Jan 16, 2018 4:39 pm

by WorkonSunday

i always like the idea of having more choices, even one that i cant afford, because this paves the way for next gen lower price options.


the design so far seems to suggests that they accepted the freehub body is part of the consumables since half of the ratchet system is also freehub body. this integration no doubt help reducing weight but as others have said, reliability remain to be seen.

i read the cyclingtips article, although it mentioned a few times about bigger bearings, the article never specified which ones. would be interesting to find out.
Some say pour 10ml water out of your bottle to save that last bit of the weight. Sorry, i go one step further, i tend to the rider off my bikes. :thumbup:
n+1...14 last time i checked, but i lost count :mrgreen:

by Weenie


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