Support road.cc

Like this site? Help us to make it better.

TECH NEWS

Campagnolo launches Bora 35 and 50mm clincher wheels

Bora carbon wheels now available in a clincher version

Campagnolo redesigned its Bora carbon fibre wheels last year, making the rim wider and introducing a new 35mm option alongside the regular 50mm version. Both were only offered in a tubular version, but now the Italian company has added a clincher version of both Bora 35 and 50mm wheels for 2015.

“While most will recognise the tubular wheels as the go-to choice for top professional riders, the fact remains that tubular tires are less practical than clinchers for those of us not fortunate enough to have a support car with spare wheels following behind,” says Campagnolo.

We couldn’t agree more. Clincher wheels might carry a small weight penalty, but are far more practical and easy to set up in the first place. 

The new clincher Bora 35 and 50mm rims feature the same 24mm wide rim as first introduced on the tubular versions last year. Tyres, and rims, are gradually going wider both in the pro peloton and in the amateur ranks. Wider tyres offer more bump absorption, less rolling resistance and more traction. The wider rim allows wider tyres to be used with the wider rim providing a better platform for wider tyres while avoiding the ‘light bulb’ effect.

The clincher wheels also get the same 3Diamant brake surface treatment, a process that removes more of the resin from the rim so the brake blocks are contacting the carbon fibre.

“The 3Diamant braking surface puts the surefooted braking performance of an aluminium wheel in a top-end high performance carbon wheel,” claims Campagnolo.

Both the 35 and 50mm wheelsets will be available with Bora Ultra and Bora One versions, which use the same hubs but ceramic bearings in the Ultra.

Here are the weights for the different wheelsets:

Bora Ultra 50: 1435 g
Bora Ultra 35: 1360 g
Bora One 50:  1485 g
Bora One 35: 1406 g

For comparison, the Bora Ultra 50 tubular version weighs a claimed 1,267g, so you’re looking at an extra 168g for the clincher version.

No UK prices have been confirmed yet. We’ll update this article as soon as we know. More at www.campagnolo.com

David worked on the road.cc tech team from 2012-2020. Previously he was editor of Bikemagic.com and before that staff writer at RCUK. He's a seasoned cyclist of all disciplines, from road to mountain biking, touring to cyclo-cross, he only wishes he had time to ride them all. He's mildly competitive, though he'll never admit it, and is a frequent road racer but is too lazy to do really well. He currently resides in the Cotswolds, and you can now find him over on his own YouTube channel David Arthur - Just Ride Bikes

Add new comment

16 comments

Avatar
don simon fbpe | 10 years ago
0 likes

Sexy.

Avatar
Nick T | 10 years ago
0 likes

It's a shame to see the less practical tubular myth being perpetuated.

Avatar
mrmo replied to Nick T | 10 years ago
1 like
Nick T wrote:

It's a shame to see the less practical tubular myth being perpetuated.

Please explain why it is a myth?

Scenario, riding home from work, windy, wet, pick up some glass and get a puncture. How would tubs be less hassle than clinchers?

Avatar
miro_o replied to mrmo | 10 years ago
0 likes

Are you thinking of buying a pair of Campag Bora for the winter commute mrmo? Will you buy me some?

Please explain why it is a myth?

I hope Nick T doesn't mind me butting in.

The top clincher/tube/wheel combinations are faster now, but only the very, very best. There are good reasons riders still choose to own tubulars wheels;

- There is no 'team car' even for amateur racers. You put your spare wheels in the service van if you're road racing. The time taken to get you back on the road is critical, but it's down to fitting a wheel, not a repair.

- If you're TTing you don't need to climb into a ditch to sort a flat, you can roll-on slowly on a flat tub. The time taken to get back on the road isn't critical – your race is over, unless it's a long course in which case see above.

- you might just need a top-up of air if you've put some sealant in.

- you can train on them if you must. Sealant and gas will sort you out and a spare tyre if you're planning an epic.

- you don't need to spend a long time (at home or beside the road) with glue, tufo tape works.

- It's relatively easy and cheap to make a carbon tubular rim. It's expensive to make good carbon clincher. This matters to most riders because rims are consumable items.

- Modern tubular wheels (like above) are for going fast, if you're going fast you will certainly want latex tubes. Latex and carbon clinchers don't play nicely together. The times they decide to not play nicely tend to be on long, fast descents.

- Carbon clinchers delaminate sometimes. Those times tend to be on long, fast descents.

I hope this is useful. I'm not advocating one system over another. Both have limitations and are suited to different uses.

Avatar
Nick T replied to mrmo | 10 years ago
0 likes
mrmo wrote:
Nick T wrote:

It's a shame to see the less practical tubular myth being perpetuated.

Please explain why it is a myth?

Scenario, riding home from work, windy, wet, pick up some glass and get a puncture. How would tubs be less hassle than clinchers?

Take the valve core out, squirt a bit of sealant in, give it a spin and pump it up before continuing your journey. No removing a tyre, no looking for a puncture, no trying to put glue in the right place in the rain with wet fingers, no hassle. Then if you're unlucky enough to ride over another bit of glass, you probably won't even notice that the sealant has fixed it for you.

Avatar
230548 | 10 years ago
0 likes

I really can't get my head round "the bigger the tyre the less the drag idea" for summer riding i use veloflex 21mm clinchers, for my winter riding i use hardshell gatorskins 25mm clinchers & I certainly know which is the easier to turn. Will we all end up riding very light bikes but with fat bike tyres? at what size does the aero effect stop and the drag friction on the road stop?  102

Avatar
fukawitribe replied to 230548 | 10 years ago
0 likes
230548 wrote:

I really can't get my head round "the bigger the tyre the less the drag idea"

Not sure what you mean here - are you talking about aerodynamic drag or the rolling resistance ?

Avatar
230548 replied to fukawitribe | 10 years ago
0 likes

How far are manufactures going to take the big tyre = less aero drag, at what point does the rolling resistance become greater than the aero gain, just at the point where you have to purchase new wheels, or am i being cynical

Avatar
fukawitribe replied to 230548 | 10 years ago
0 likes
230548 wrote:

How far are manufactures going to take the big tyre = less aero drag, at what point does the rolling resistance become greater than the aero gain,

The aero performance and rolling resistance depends on a whole bunch of stuff - including, for a given tyre line, the size of the tyre and the rim. Match the rim size to the tyre size and you might end up with a more aerodynamic shape - or not. What larger tyres volumes can provide is the potential for more comfort, higher grip and lower rolling resistance - but whether they do or not obviously depends in turn on a bunch of other stuff (e.g. pressure, compliance, compound).

None of that even considers the wheel dynamics, road surface or wind conditions. How big is too big ? Who knows - it's all so inter-twined with other stuff i'm not even sure it's answerable.

230548 wrote:

just at the point where you have to purchase new wheels, or am i being cynical

The latter.

Avatar
Guerch to Church replied to fukawitribe | 9 years ago
0 likes

I totally agree.

Avatar
Guerch to Church replied to 230548 | 9 years ago
0 likes

I agree with you, I understand getting rid of the "light bulb effect" with using the wide tire wide rim combo. But it can't be better than a thin rim and thin tire combo, when the treads you're ride on are almost points. I think the consideration was that being that you're going wider, the two together was better aero. But going wider is a compromise of aero for comfort. Yeah it has to be a line somewhere.

Avatar
notfastenough | 10 years ago
0 likes

@Huw - I've only got entry-level Mavics (Ksyrium Equipes) but the lateral flex isn't great. I'm not talking about massive power either - I'm just your average-strength 70kg club rider, but can hear brake block rub and what sounds like some kind of spoke/drivetrain contact when I'm climbing out of the saddle. This is despite having the tension and truing checked. Put it this way - the stock Bontrager wheels on my Trek are better. My next will be handbuilt.

Avatar
Huw Watkins | 10 years ago
0 likes

I used to swear by Campag wheels - light, durable, decent looking, etc

However, I've now been trying to get a replacement Eurus rim for the last 6 months to no avail. My LBS tells me that I might never get one, so for want of a rim I've got to chuck the whole wheel.

They also tell me that this is NOT the case with Mavic who do offer a decent rim replacement service. Will not be buying Campag wheels again however pretty they look.

Avatar
allezrider | 10 years ago
0 likes

Those weights seem more sensible than quoted on bike radar, which said the Bora One 50 clinchers were 1,313g! Thought that was too light for carbon clinchers.

Avatar
Miles253 | 10 years ago
0 likes

Love the look of these, cant imagine the pricing to be too favourable though

Avatar
notfastenough | 10 years ago
0 likes

The Bora One 35mm clinchers look good for mere mortals who want to make their toy a little flashier/quicker (such as me), but presumably that grouping of spokes prevents you from truing the wheels if a deflection appears on a part without spokes?

Latest Comments