Cyclocross World Champion for years. Whether a Pro or just a hard core rider Grifo is the tyre you need. Unbelievable grip with no rolling resistance compromise.

Details: Use Cyclocross Size 622/700" Width 32" Weight TPI 30 Bead Steel Carcass Nylon Black sidewall BAR 31-51 PSI 40-75 NB Item shown is Grifo Handmade Open tyre

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Cyclocross World Champion for years. Whether a Pro or just a hard core rider Grifo is the tyre you need. Unbelievable grip with no rolling resistance compromise.

Details: Use Cyclocross Size 622/700 Width 33mm Weight 340 gr TPI 300 Bead Aramid Carcass Super Poly BAR 2
- 6 PSI 28-87 CHALLENGE TUBULARS HAND MADE: All tubular & open tubular produced by Challenge are special products. Machines are not able to produce them & 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 &40;a cotton & polyester combination&41;. Corespun is a thread from which we obtain a very supple & 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 & flexibility. The tread is slowly hand glued on the casing which is previously mounted & inflated on a rim. By using this method the tread is relaxed on the casing & 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 & better grip. Hand made tubulars are well known by professionals & is this type of tire 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 & this results in absorption of irregular surfaces giving to the cyclist the best possible contact patch. The wheel avoids jumping & the tire will deform & absorb the irregularities acting in some way as a shock absorber. A special fabric is placed between the tread & casing to increase puncture resistance PPS &40; Puncture Protection System&41; technology. Comfort means reduction of harmful vibrations for the wrists & neck these vibrations will end causing inflammatory problems as a hard tire will transfer all the vibrations directly to the racer body.


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Cyclocross World Champion for years. Whether a Pro or just a hard core rider Grifo is the tyre you need. Unbelievable grip with no rolling resistance compromise.
Details: Use Cyclocross Size 28&34; Width 33mm Weight 415 gr TPI 300 Bead Carcass Super Poly BAR 1.6
- 3PSI 28-87CHALLENGE TUBULARS HAND MADE: All tubular & open tubular produced by Challenge are special products. Machines are not able to produce them & 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 &40;a cotton & polyester combination&41;. Corespun is a thread from which we obtain a very supple & 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 & flexibility. The tread is slowly hand glued on the casing which is previously mounted & inflated on a rim. By using this method the tread is relaxed on the casing & 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 & better grip. Hand made tubulars are well known by professionals & is this type of tire 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 & this results in absorption of irregular surfaces giving to the cyclist the best possible contact patch. The wheel avoids jumping & the tire will deform & absorb the irregularities acting in some way as a shock absorber. A special fabric is placed between the tread & casing to increase puncture resistance PPS &40; Puncture Protection System&41; technology. Comfort means reduction of harmful vibrations for the wrists & neck these vibrations will end causing inflammatory problems as a hard tire will transfer all the vibrations directly to the racer body.

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Multi Cyclocross Champion for years. Tread designed for speed on hard dry terrains.

Details: Use Cyclocross

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Multi Cyclocross Champion for years. Tread designed for speed on hard dry terrains.

Details: Use Cyclocross

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Latex inner tubes: Used in all high end tubular thanks to their low rolling resistance. Thinner & more flexible than butyl tubes. The use in open tubulars increases comfort & lowers rolling resistance. Latex is also more resistant to punctures. On the other hand it is a porous material therefore it requires daily inflation. ...

Deeper 33mm knobs for increased traction in deep mud. Speed & max. traction all in one.

Details: Use Cyclocross

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Deeper 33mm knobs for increased traction in deep mud. Speed & max. traction all in one.

Details: Use Cyclocross

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A 260TPI tubular for amateurs & pro alike. The best value performing tyre in our range of handmade tyres.

Details:

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The new MTB One tubular tyre. The special mud-free large tread to grip the worst mud & stand fast & agile at the same time. Jump from everywhere to everywhere. No brainer. Just race.

Details: Use MTB Size 26&34; or 29&34; Width 51&34; Weight 580 gr TPI 300 Bead Carcass Super Poly BAR 16-6 PSI 24-87 CHALLENGE TUBULARS HAND MADE: All tubular & open tubular produced by Challenge are special products. Machines are not able to produce them & 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 &40;a cotton & polyester combination&41;. Corespun is a thread from which we obtain a very supple & 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 & flexibility. The tread is slowly hand glued on the casing which is previously mounted & inflated on a rim. By using this method the tread is relaxed on the casing & 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 & better grip. Hand made tubular are well known by professionals & is this type of tire 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 & this results in absorption of irregular surfaces giving to the cyclist the best possible contact patch. The wheel avoids jumping & the tire will deform & absorb the irregularities acting in some way as a shock absorber. A special fabric is placed between the tread & casing to increase puncture resistance PPS &40; Puncture Protection System&41; technology. Comfort means reduction of harmful vibrations for the wrists & neck these vibrations will end causing inflammatory problems as a hard tire will transfer all the vibrations directly to the racer body.

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