[Closed] Prime Carbon Clincher Disc Wheelset any good?

As long as you don't run them tubeless - they explode. Numerous reviews highlighting this, and Wiggle had to send out an email to everyone advising what rim tape to use, etc. I can confirm they still explode following their exact advice.

16.5mm internal width so fine with 23mm tyres but not ideal if you plan to run much wider.

I had the v2s on an old rim brake bike. My mate also has them.

Always run tubeless, no problems, and 25mm tyres are absolutely fine on them. I now have giant slr1 wheels which cost twice the price and I don't think are much better, although lighter in disk version.

Really good wheels for the cash, I'm tempted to get a set for one of my other road bikes, but the disk version is about 250gm heavier than the rim brake for some reason, so a bit heavy.

16.5mm internal width so fine with 23mm tyres but not ideal if you plan to run much wider.

In what way is it not ideal? Very, very marginally less aero?

I should bin all my road wheels then, doubt any are wider than 15mm internal (Shimano's standard internal width last I checked)...

butcher
Member

As long as you don’t run them tubeless – they explode. Numerous reviews highlighting this, and Wiggle had to send out an email to everyone advising what rim tape to use, etc. I can confirm they still explode following their exact advice.

Then you need to use the right tape and get better at taping rims. The reason they “explode” is when people use non tubeless tape to try and use them tubeless OR when they are badly taped and the air is able to get into the rim cavity. Pressure builds and the rim wall explodes as the air has no where else to go.

Enve and plenty of other carbon wheel brands had the same problem. Prime & Enve both supply the wheels with a pressure release valve nut to prevent this happening now.

If the air is able to get into the rim cavity it isn’t taped properly.

https://bikerumor.com/2019/03/12/enve-pressure-relief-nut-keeps-carbon-tubeless-road-rims-from-popping/

I had the rim brake version. Ran them tubeless right from the first ride, no issues at all. Those Prime wheels are very good and you've got the warranty / support of CRC to back it up.

From the Q&A they will run 23-28c tyres, my frame ony fits 25c max anyway. Plus conversion kits & new hubs seem really cheap. Think I'll get them ordered.

Might clash horribly with my frame though:

Enve and plenty of other carbon wheel brands had the same problem. Prime & Enve both supply the wheels with a pressure release valve nut to prevent this happening now.

In other words they identified a problem with their rims and they fixed it?

I followed their exact instructions and used the tape they recommended. I've been building bikes since I was about 9 years old, it's not like I'm so incompetent I can't tape a rim. Can you ever be sure that your tape is 100% air tight and able to withstand high pressures? People have reported it happening randomly after years of use too.

By all means, run them tubeless, I'm sure most people don't have any problems, but it's clear there is an issue with them.

These were the alternatives:
https://www.ebay.co.uk/itm/254313548244

Think I'd pay slightly more and order direct from Light Bicycle or Farsports.

LB are doing free delivery this month, although you can still pre pay the import tax.

I started looking at these until I realised quite how heavy they are 1,800g. That’s a lot of extra weight in my book. Plus run profile could be said to be a bit ‘old’

Then I looked at nice light aluminium rims 30mm deep £290 1,400g

I’m now looking at roughly £600/£800 for direct sales wheels approx 1,500g

Or even potentially some nice Zipp’s or Campagnolo if I can get them at reasonable price.

Considered Cero?

https://www.cycledivision.co.uk/wheels/disc-brake-wheelset/cero-rc50-disc-carbon-clincher-wheelset-9019

Almost certainly just rebranded Chinese stuff but seem to get unanimously good reviews, specs are good on paper, and UK seller so should be easier to resolve any problems.

Having spent the last few days deliberating over various options I've just bought some 35mm rim brake clinchers so hopefully they're going to be half decent..

To be fair, if you plan on running tubes, the Primes are decent enough for the price. There are a lot of Chinese alternatives, but you need to factor in import duties if buying direct, and almost all of the brands that get recommended will push your budget up. Although you will get a better product. So it's a bit of a toss-up between the completely unknown and the premium Chinese stuff. Prime are a bit of a compromise in the middle.

Cheers all.

It’s for my commuter/Sunday club run social bike so not too fussed about weight (to an extent) but want to keep costs below £500.

Also spotted the Prime 38s for £360 which is a bit of steal, but I want something a little deeper...

https://www.bike24.com/p2304248.html?q=Prime%20disc

Anyone know why the prime v2 disk are so much heavier than the v2 rim. My rim version weighed in at 1570gm, which is 250g less than the disk. Is the weight all in the hubs on the disk set?

They use Novatec D792 hubs which apparently weigh 420g for a pair (150g front and 270g rear).

I just got the 38mm rim brake (retro) Primes.

To say fitting a tyre was fierce would be an understatement.

God knows what I'll do if I puncture out in the wild..

I've had the 50mm clincher rim versions for about a months now. They're great. Tyre fitting was indeed a pain but they spin well, are comfortable and for 50mm rims handle gusts really well. I tested the braking surface and pads out properly yesterday on a couple of 15% plus descents and they break well (in the dry at least). As for weight, I've PB'd a few climbs recently and a hell of a lot more flatter segments. Moving from Mavic Ksyriums, I haven't noticed the weight increase. They excel on rolling terrain. To summarise, I bought another cassette for the Mavics so I can swap between wheels easily. It hasn't been even fitted yet!

Done:

[img] [/img]

Sit thinner than my old wheels, but I think that's a good thing as there really wasn't much clearance on the seat stays. Only been on a quick 20 min ride but they seem to roll nicely.

Also bought some pressure relief valves for some tubeless in the future, but I've got tyres to wear down first.

Thanks all 🙂

My prime black edition rim wheels are wider than the Hunt 50mm I also have. Tyres went tubeless on then just fine, no more difficult than the other 4 or 5 pairs of road wheels I have set up Tubeless before.

I would happily buy the disc version.

there really wasn’t much clearance on the seat stays

No kidding!