GrigioCarbonio Primato T28 Disc Tubular Wheels - 820 gr.
Reference:
€3,352.46
GrigioCarbonio Road Disc Tubular Wheels assembled with GrigioCarbonio Hardwheel T28 T1000 carbon fiber rims (28 mm height, 25 mm wide), Extralite CyberDisc SPD-3 hubs and Berd textile Dyneema straight-pull spokes. Many freewheel standards available (Shimano, Sram, Campagnolo...), quick release or 12 mm thru axles both, 12K or UD carbon fiber finish (glossy or matte). Sticker decals available in many colors. Weights from only 820 grams for the pair. No rider weight limit! Wheels Made in Italy.
With weights starting from only 820 grams for the pair (QR12 thru axles, XDR freewheel body, 12K rims +/- 2% tolerance) GrigioCarbonio Primato T28 are some of the lightest wheels on the market.
These wheels are for disc brakes and tubular tires, can be use for Road Racing, Gravel or Cross. They're laced with 24x straight-pull spokes, front and rear both. They're available with quick release or QR12 thru axles hubs standard and with Campagnolo, shimano and Sram 11-12s compatible freewheel body. They're available with 12K or UD carbon rim finishing, glossy or matte.
Although their impressive weight, these wheels are also strong and reliable due their incredible rims, GrigioCarbonio HardWheel T28 T1000, which are their greater goal!
They're 25 mm wide and 28 mm height. They're symmetrical.
Sticker decals are available in many colors, please specify your choice inside order details or just e-mail us for any demand.
Hardwheel T28 T1000 rims are compatible with tubular tires, they are monocoque made with T1000 high module carbon fibre, the most advanced and performable on the market that allows to obtain an incredible weight/stiffness ratio. But the main and more important feature of T1000 fiber is its great elasticity (25% more than T800), so a better impact resistance, less vibrations and a superior comfort...all this is really great for a bicycle rim! Please take note that also Formula One driver's safety Roll Cages are made with this special material!
T1000 carbon fiber is at lean 4 times more expensive tan T700 and T800 carbon fibers (which are usually used to make carbon fiber rims). GrigioCarbonio use 100% T1000 fibers and T1000 specific expensive resin and is proud to offer top quality products with unique features at a competitive price, that's the real goal.
HardWheel T28 T1000 rims were tested for a long time, not only lab tested but also on the race tracks, where national and international top riders abused them without problems...they're very happy with their performance!
Every GrigioCarbonio product withstand UNI EN 14xxx safety tests and got approval in CSI labs, because safety comes always first!
GrigioCarbonio is an Italian brand that was born after 20 years of carbon fiber experience by SG Compositi (famous for high-end aerospace and automotive partnerships). So all this experience and the habit with most severe quality standards is a guarantee for top products!
HardWheel T28 T1000 rims are incredibly light, only 230-235 grams each, but due their top quality materials and manufacturing, they haven't got any rider weight limit, and this is really impressive!
Also the hubs are top quality ones, we are talking about the famous Extralite CyberFront and CyberRear SPD-3 hubs, which are the only choice to assemble an ultralight wheelset!
Extralite CyberHubs are fine mechanics masterpieces. They're made of 7075T6 aluminum ably machined to obtain smooth and sexy shapes. They've got straight-pull flanges for straight-pull spokes which allows stronger and stiffer wheels without weakness typical of j-bend spokes.
Extralite HyperBoost hubs has got an hyper engineered engagement system with 32 engagement positions for a fast and smooth action with minimal friction resistance. The 32T ratcher ring is made of titanium.
Rolling action take advantages from the use of Enduro ABEC5 steel sealed bearings. An external bearings pre-load system allows to obtain the perfect side play for the maximum performance (rolling resistance, smoothness and lasting). Stainless Steel ABI Enduro 440, Enduro HDC ceramic hybrid and XD-15 full ceramic bearings are also available as option.
CyberHubs SPD-3 hubs are available for quick release or thru axles :
FRONT WHEEL :
QR5 (9X100 mm)
QR12 (12x100 mm)
REAR WHEEL :
QR5 (10X135 mm)
QR12 (12x142 mm)
Another exclusive feature of the Primato T28 wheels is the use of the revolutionary Berd textile Dyneema spokes (made in the USA). Berd spokes are very expensive, complex to make and to assemble but they really have many advantages.
Berd spokes are made with an advanced polymer called Ultra High Molecular Weight Polyethylene (UHMWPE) also known as Dyneema. Dyneema has 12 times the strength / weight ratio of steel and floats on water. This is what makes Berd spokes the lightest, strongest and most durable ever invented (thanks to the use of this special materia)!
With only 2.5 grams per spoke, Berd spokes are the lightest in the world and allow you to save several tens of grams compared to even the lightest steel spokes. As is known, the weight saved on the rotating masses is much more important and generates greater benefit than elsewhere.
Despite their significantly lower weight, Berd spokes have even better mechanical characteristics than traditional steel spokes: greater tensile strength, lower elongation, greater resistance to corrosion and atmospheric agents. They also have a very large capacity to dampen vibrations and impacts, so they give life to very comfortable and very resistant wheels that are free from the problems of fatigue life typical of metals. The greater comfort is not at the expense of the overall stiffness or the reactivity that remain at the top of the category.
Super light spokes but also very reliable and long-lasting (straight-pull head spokes are already more resistant as they do not have the classic bent head, which is the typical weak point of traditional spokes), several laboratory tests have confirmed their positive effect on the whole. wheel that is overall more resistant and more capable of absorbing impacts without suffering permanent damage.
Wheels assembled with Berd spokes are built with a gradual, multi-day tightening process to reduce the amount of tension loss that will occur after the wheels are installed on a bicycle. Despite this, the tension in the wheels with Berd spokes will decrease by about 30% in the first 6 months of use due to the natural settling process of the fibers (the phenomenon is known as "Creep") but, unlike the metal spokes, they retain all their strength regardless of tension. This loss of tension does not affect the life or longevity of the Berd spoked wheels and there is no need to increase the tension. The stiffness of the wheels in fact depends weakly on the tension of the spokes (less than 10%), if you wish you can still proceed with re-tightening after 3-6 months.
Spoke nipples are made of aluminum and they're double square type for a better fitting with rim holes. These nipples has also got a special system that avoid spokes loosen.
With weights starting from only 820 grams for the pair, GrigioCarbonio Primato T28 wheels are some of the lightest wheels on the market. All the weights has got 2% tolerance and they refer to 12k rims, UD finish adds about 10 grams for the complete wheel-set. A They're indicative weights subject to modify from the manufacturers of any wheels parts.
GrigioCarbonio Primato T28 wheels are pieces of art and absolutely top level! Their weight is impressive but their performance is more impressive! These wheels are not only incredible fast but also very stiff and super comfortable and of course strong and reliable too! Really not so common for ultralight carbon wheels, they worth all the money spent! When you will try them you will no longer be able to ride without them!
Given the particularity and exclusivity of the product, the various options available and the not easy availability of components please contact us before placing any order, just to check availability and delivery time.
Rims, hubs, and wheel-building are 100% made in Italy
GrigioCarbonio, ruote strada disco tubolare assemblate con cerchi GrigioCarbonio Hardwheel T28 in fibra di carbonio T1000 (altezza profilo 28 mm, larghezza 25 mm), mozzi Extralite CyberDisc SPD-3 e raggi tessili Berd Dyneema straight-pull. Vari standard ruota libera disponibili (Shimano, Sram, Campagnolo) sia quick release che thru axles 12 mm. Cerchi disponibili con finitura 12K o UD, lucidi o opachi. Grafiche a scelta in vari colori. Pesi a partire da soli 820 grammi la coppia, nessun limite peso biker! Ruote Made in Italy.
Peso :
Da 820 gr. la coppia (+/- 2%)
Profilo cerchio :
Simmetrico
Diametro :
28" (622 mm)
ERD :
587 mm
Altezza :
28 mm
Larghezza :
25 mm
Materiale :
Cerchi in fibra di carbonio T1000, mozzi in alluminio 7075T6, raggi in fibra tessile Dyneema
Finitura :
Cerchi in carbonio naturale con trama 12K o UD, finitura Lucida o Opaca, mozzi nero anodizzato, raggi neri
GrigioCarbonio Primato T28 Disc Tubular Wheels - 820 gr.
GrigioCarbonio Road Disc Tubular Wheels assembled with GrigioCarbonio Hardwheel T28 T1000 carbon fiber rims (28 mm height, 25 mm wide), Extralite CyberDisc SPD-3 hubs and Berd textile Dyneema straight-pull spokes. Many freewheel standards available (Shimano, Sram, Campagnolo...), quick release or 12 mm thru axles both, 12K or UD carbon fiber finish (glossy or matte). Sticker decals available in many colors. Weights from only 820 grams for the pair. No rider weight limit! Wheels Made in Italy.
