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Ultra 25T

€2,399.00 *

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ax Road Ultra Tubular wheelset
Freehub body ** 

Choose among a Shimano/Sram 11x compatible freehub body and a Campagnolo freehub body!

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Hub bearings ** 

Choose amongst high-quality Enduro Abec 5 stock bearings or the high end coated Ceramic-Hybrid bearings of the Danish specialists of CeramicSpeed!

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Tire package incl. fitting ** 
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Accessories 
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  • SW10059
Ultra 25T King of Mountain with a set weight of a sensational 790 grams. For 2017... more

Ultra 25T

King of Mountain with a set weight of a sensational 790 grams.

For 2017 our shallow tubular rim and best practice model, the Ultra 24T, has completely been reworked. The successor, the ax 25T, now is 25 mm deep and with its width of 22 mm boosts a weight of under 200 grams, so that a wheelset weight of 790 grams can be realized.

The ax 25T omits the integrated logos on the rim and improves its aerodynamical performance thanks to a revised rim shape.
The stepped and mechanically machined brake track further improves the braking performance even in difficult situations.

The Ultra 25T is a real climber and King of Mountain as it already has proven with numerous race wins, regardless if Alpine marathon or mountain time trial.

Despite of its sensationally low weight the Ultra 25T sports outstanding stiffness and stability values that grant it a rider weight limit of 100 kg and not only make it the weapon of choice uphill but just as well also when the road goes down again.

 

Wheelset line: Ultra
Felge: ax 25T, 195 g/Stück
Rim material: 100 % Carbon Prepreg
Carbon finish: 3K
Tire type: Tubular
Brake type: Rim brake
Rim depth: 25 mm
Rim width: 20,5 mm
Hubs: Extralite CyberFront SP / CyberRear SP
Axle standards front: Quick release
Axle standards rear: Quick release
Freehub body: Campagnolo, Shimano/SRAM
Spokes: DT-Swiss Aerolite, black
Nipples: DT Swiss Pro Lick hidden, internal
Spoke tension: front: 100 kgf, rear: 140 kgf
Spoke count: 20 front, 24 rear
Intended application: Road
Wheelset Road: ax Ultra 25T
Rim type: Full carbon
Decal colour: weiß (Standard)
Tires: Tire package optional
Accessories: Swissstop brake pads (4 pcs)
Weight: 790 g (+/- 5 %)
Rider weight limit: 100 kg
Extralite CyberHubs SP / CeramicSpeed Ceramic-option Our Ultra wheelset invariably rely... more

Extralite CyberHubs SP / CeramicSpeed Ceramic-option

Our Ultra wheelset invariably rely on high performance hubs from Extralite. The Italian lightweights are some of the lightest hubs on the market. An intelligent, elaborate construction by means of FEM-analyses are a guarantor for a high durability, reasonable features such as an adjustable bearing play a high suitability for daily use. 

New for 2017 we optionally offer our Ultra wheels with Ceramic hybrid bearings. As we do not settle with the second best, we only offer the highest quality of bearings from CeramicSpeed. The Danish specialists are renowned as the nonplusultra for years and have wins in about every single race globally available in their palmares.

Read, write and discuss reviews... more
Customer evaluation for "Ultra 25T"
20 May 2018

Hard to believe these are real!

I purchased these wheels with the ceramic bearing option and mounted Vittoria Corse Competition tubulars. Initially, the hubs felt sluggish, just like regular steel bearings with new grease. I now have 300Km on the wheels and they are very free and smoother than anything I've felt. I can actually feel the ultra smooth rolling action of these hubs. I weighed them out of the box and they were 777g (for both wheels.) I didn't believe it so I weighed them on another scale and it was the same result. The finish of the carbon is unbelievable. The tubular bed is the perfect shape for 25mm tubulars so that the edges of the wheel fill the gap smoothly. Finally, they feel stiff when out the saddle. I am very happy with this purchase.

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