The Campagnolo Bora Ultra 50 tubular wheels are a leading example of advanced Italian road bike technology, being the wheelset of choice for World Champions and Grand Tour winners when faced with rolling roads and flat terrain. The Campagnolo Bora Ultra's are almost uncharacteristically lightweight compared with other aero wheelsets. Despite the enormous aerodynamic gains on offer with the 50mm deep rim, they weigh just 1215 grams per pair. Due to the new slightly larger, 24.2mm rim width, this wheelset also accommodates wider tyres than the previous model. As a result, rider comfort and grip are dramatically improved. While carbon rims have a reputation for poor braking, by applying All Conditions Carbon Control (AC3) technology to the brake track, the Campagnolo Bora Ultra's offer a 40% improvement in braking performance in the wet, and 20% better braking performance in dry conditions. At the core of these wheels are a set of oversized, high flanged carbon-fibre hubs. These are filled with Campagnolo's proprietary CULT ceramic bearings, which help these wheels spin smoother, for longer. These hubs are laced and balanced to the carbon rim by hand via 18 bladed stainless-steel spokes in the front and 21 in the rear, using Campagnolo's distinctive G3 spoke pattern. These design and manufacturing techniques result in a wheelset that is incredibly torsionally stiff, efficient and offers lasting race-winning performance. Carbon fibre rim construction 50mm rim depth 24.2mm external rim width to accommodate wider tyres AC3 rim construction for improved all-weather braking performance Weight: 1215 grams Tubular tyre compatible Rim brake compatible Handbuilt in Italy High flange carbon hub set, (100mm front) (130mm rear). Cup-and-cone bearing system. CULT ceramic bearings Bladed aerodynamic stainless-steel spokes. 18 front, 21 rear. Aluminium nipples 9/10/11 speed compatible freehub Includes: special brake-pad kit for carbon wheels, quick releases, valve extenders and a user manual
The Campagnolo Bora Ultra 50 Wheelset features CULT Ceramic bearings, which provide extreme smoothness, the lowest friction coefficient thanks to oil lubrication and are 9 times more efficient than standard bearings and will spin for up to 47 minutes after being run at 500rpms. The Campagnolo Bora Ultra 50 Tubular Wheelset has taken on a wider rim profile, moving from 20.5 to 24.2 mm, allowing the Campagnolo engineers to improve the aerodynamics and house wider tyres. the wider tyres increase the contact patch between tyre and road, thus improving grip and ride comfort. The wider structure also represents an increase in structural strength and allows the engineers to remove the extra material used for structural integrity making the Bora family the lightest it's ever been. The Campagnolo Bora Ultra 50 Tubular Wheelset has had a tummy tuck with the weight further reduced thanks to a smaller profile front hub. The weight and size of hub have been reduced while maintaining the all the fantastic performance characteristics of the previous version. Campagnolo engineering staff have developed a new construction that provides a braking performance superior to other carbon rims. The AC3 (All Condition Carbon Control) technology not only improves braking in the dry but boosts performance by 43% over past Campagnolo models and nearly 55% over that of its closest rivals when the roads get wet. Apart from the obvious textured braking surface the construction of the new Bora wheels also underwent internal improvement to ensure maximum integrity when faced with the increased force and heat deriving from the new braking surface. If you're looking for a pro standard wheelset the Campagnolo Bora Ultra 50 Tubular Wheelset will push you past the competition and give you the feeling of a champion.
Pista wheels were designed with only one objective in mind: to convert the track racer's energy into pure and simple speed. In track events, weight is of relative importance. The difference is made by the wheel's ability to transmit the cyclist's power completely. With such a theory in mind, our engineers created an extremely stiff high-profile rim and a spoking pattern that yields the utmost in power transmission. This is how Campagnolo's Pista was born.Self-locking nutsNut-plate system with ball couplingAero stainless steel spokesDisc profileTrack hubs with steel axleFront wheel: 995 gRear wheel: 1110 gThe nominal weight refers to the lighter specification among the available options..
Challenge Almanzo Gravel Open Tubular TyreThis highly-effective gravel tyre features a tubular construction and double-layered puncture protection for excellent durability. The 'open' design of the tyre performs like a tubular, yet conveniently mounts like a standard clincher tyre. Plus, its tight tread offers excellent grip at high speeds, making it a reliable racing tyre even on tougher surfaces. Designed to give you more control than the Strada Bianca tyre and faster rolling resistance than the Gravel Grinder when cornering.Features: Use: Hard Pack Dirt to Light Gravel Size: 700 Tyre Width: 33mm Internal Rim Width: 15-19mm TPI: 260 Bead: Aramid Casing: SuperPoly Flat Protection: Double PPS BAR: 3-9 PSI: 45-130 Weight: 385gTechnologies: Challenge Handmade Clinchers (HCL): Our Handmade Clinchers are made from the same materials and processes as our handmade tubulars but instead of sewing an inner tube inside the casing is wrapped around an aramid bead to form a tire that fits on a clincher rim. The HCL is moulded flat, not in a horseshoe like a TLR or VCL. This shape allows the casing to naturally deform over surface imperfections and minimize rolling resistance. A tubeless tire is moulded in a U-shape to make the sidewalls rigid, so the system does not “burp” or lose air when it deforms after it encounters a surface imperfection. The tubeless tire's stiff sidewall compromises its ability to equal a supple HCL with a latex inner tube.Buy Challenge Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Open Tubular (Clincher) An open tubular is constructed using the same casing and tread materials and process as a tubular, but instead of sewing the casing together (closed), the sides of the tubular casing are folded around aramid fibre cords to produce beads. This ‘open’ design performs like a tubular, yet conveniently mounts like a standard clincher tyre. If combined with a Latex inner tube the ride becomes even closer to that of a tubular, offering excellent traction and cornering, low rolling resistance and shock absorption.
Challenge Almanzo Tubular Mountain Bike TyreThe Challenge Almanzo Tubular MTB Tyre brings the rolling performance and traction benefits of the tubular tyre system to mountain bikes. Featuring two layers of puncture protection, a supple and tough SuperPoly tread compound and a reinforced 260 TPI casing; this tyre provides exceptional rider confidence thanks to the its grip and traction qualities, which enables you to rider faster over gravel terrain.Features: Use: Gravel Type: Tubular Puncture Protection: Double PPS Casing: SuperPoly TPI: 260 Inflation Pressure: 60 - 130 psi Weight: 385gBuy Challenge Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Challenge Almanzo Tubular Mountain Bike TyreThe Challenge Almanzo Tubular MTB Tyre brings the rolling performance and traction benefits of the tubular tyre system to mountain bikes. Featuring two layers of puncture protection, a supple and tough SuperPoly tread compound and a reinforced 260 TPI casing; this tyre provides exceptional rider confidence thanks to the its grip and traction qualities, which enables you to rider faster over gravel terrain.Features: Use: Gravel Type: Tubular Puncture Protection: Double PPS Casing: SuperPoly TPI: 260 Inflation Pressure: 60 - 130 psi Weight: 385gBuy Challenge Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
The Baby Limus is Challenge's all-around cyclocross tire designed for races with constantly changing conditions. This tire is ready to take on wet sand, sticky mud, or dry, fast, packed courses and is available in a colourway usually reserved for the Pro's. Exclusive Team Edition colourway 350TPI cotton casing for ultimate performance Tubular Latex tube PPS Flat Protection 1.5 - 2.5 BAR Handmade Tubular
This tyre is also designed to be super-fast rolling with maximum control on dry hard pack, wet grass or even icy riding conditions Technologies: Challenge Handmade Clinchers (HCL): Our Handmade Clinchers are made from the same materials and processes as our handmade tubulars but instead of sewing an inner tube inside the casing is wrapped around an aramid bead to form a tyre that fits on a clincher rim. The HCL is moulded flat, not in a horseshoe like a TLR or VCL. This shape allows the casing to naturally deform over surface imperfections and minimize rolling resistance. A tubeless tyre is moulded in a U-shape to make the sidewalls rigid, so the system does not “burp” or lose air when it deforms after it encounters a surface imperfection. The tubeless tyre’s stiff sidewall compromises its ability to equal a supple HCL with a latex inner tube.
The Criterium is already a super fast rolling tire with impressive cornering control. This model's silk (seta) casing enhances the tires suppleness for an even more extraordinary ride. Seta Ultra S Use: Road Racing Size: 28 Tyre Width: 23 or 25 mm Internal Rim Width: (23mm) 13-15 mm (25mm) 13-17 mm Weight: (23mm) 260 gr (25mm) 270g Casing: Silk SEALED Flat protection: PPS BAR: 7-12 PSI: 100-175 Inner tube: latex
Challenge Elite Tubular Road TyreThe Challenge Elite Tubular Road Tyre features a herringbone tread pattern on a Poly compound; it's designed to provide exceptional rolling performance, traction, grip and superb reliability on both dry and wet terrain conditions. This tyre provides fantastic cornering traction, ensuring complete rider confidence at high speed while providing generous shock absorbing as it soaks up the chatter and bumps on the road surface. Engineered for durability, this tyre is perfect for both training and racing, as it handles all the challenges that are associated with riding on rough roads in the winter and in the spring. Features: Use: Road, Training Size: 700 Tyre Width: 25mm Internal Rim Width: 13-15mm TPI: 220 Casing: Poly Flat Protection: PPS BAR: 7-12 PSI: 100-175 Inner Tube: Butyl Weight: 295gTechnologies: Challenge Handmade Tubulars (HTU): These Handmade Tubular (HTU) tyres perform better than any tubeless system! Therefore, they are raced by all the top athletes and teams in every cycling segment. The latex inner tube we cradled inside the high-quality casing that is sewn shut, forming a soft protective layer for the delicate tube. A base tape is glued over the sewing for protection and to absorb the adhesive later applied to hold the tubular on the rim. The carcass is mounted on a rim, inflated and a special natural rubber tread is precisely glued on top. Puncture protection layers and sealants can be applied to the finished casing, depending on the tubular's use.Buy Challenge Wheels & Tyres from Chain Reaction Cycles, the World's Largest Online Bike Store.
Cyclocross World Champion for years. Whether a Pro or just a hardcore rider Grifo is the tyre you need. Unbelievable grip with no rolling resistance compromise. All tubular and open tubular produced by Challenge are special products. Machines are not able to produce them and the manual skill required in each step to obtain a good quality standard is very high. The casing is produced with the latest technical materials like Corespun (a cotton and polyester combination). Corespun is a thread from which we obtain a very supple and strong casing with low weights. The casings have a high TPI count that can reach over 300 tpi. Our production process avoids any vulcanisation process to enable all materials to keep their suppleness and flexibility. The tread is slowly hand glued on the casing which is previously mounted and inflated on a rim. By using this method the tread is relaxed on the casing and does not suffer any tension when inflated. The result of this is a lower rolling resistance, increase in comfort, more precise handling of the bike and better grip. Hand made tubulars are well known by professionals and is this type of tyre that is preferred for the long stage races. To give the best possible grip in curves Challenge uses the most updated materials to obtain flexibility, suppleness and this results in absorption of irregular surfaces giving to the cyclist the best possible contact patch. The wheel avoids jumping and the tyre will deform and absorb the irregularities acting in some way as a shock absorber. A special fabric is placed between the tread and casing to increase puncture resistance PPS (Puncture Protection System) technology. Comfort means reduction of harmful vibrations for the wrists and neck, these vibrations, will end causing inflammatory problems, as a hard tyre will transfer all the vibrations directly to the racer body. Classed as one of the best all-around cyclocross tyres every created by Challenge, this tyre excels in wet, dry, soft packed, rocky and root-infested course conditions. Technologies: Challenge Handmade Clinchers (HCL): These Handmade Clinchers are made from the same materials and processes as our handmade tubulars but instead of sewing an inner tube inside the casing is wrapped around a aramid bead to form a tire that fits on a clincher rim. The HCL is moulded flat, not in a horseshoe like a TLR or VCL. This shape allows the casing to naturally deform over surface imperfections and minimize rolling resistance. A tubeless tire is moulded in a U-shape to make the sidewalls rigid, so the system does not “burp” or lose air when it deforms after it encounters a surface imperfection. The tubeless tire’s stiff sidewall compromises its ability to equal a supple HCL with a latex inner tube.