Road tyres have been getting wider for years, but the engineering attention has largely stayed with the 25s and 28s. The Protocol RCR is Silca's answer to that: the first road tyres in this size range designed and optimised with the same care as a dedicated racing tyre, taking a volume-first approach that adds width and speed without adding bulk.
The numbers are the interesting part. In Silca's testing the 38mm RCR rolled at 31.7 watts against 40.5 watts for the competitor tyre it was measured against, while weighing 70 grams less per tyre. That combination - more air, less drag, less weight - is what makes a wide road tyre worth running rather than simply tolerating.
Pulsar compound handles grip and durability, the 120 TPI Race Casing is built around the pressures these widths actually run, and SealSkin tread protection keeps punctures at bay on rough surfaces. Carbon BeadLock uses rigid carbon fibre beads that will not stretch, and the whole range is optimised for 25mm internal hookless rims. Silca pitch it from local criteriums to the cobbles of Paris-Roubaix, and the 29mm through 38mm spread covers most modern road and all-road bikes.
Features
- Wide road tyres engineered with full race-tyre attention rather than scaled up from narrower sizes
- 38mm tested at 31.7 watts rolling resistance against 40.5 watts for the benchmark competitor, and 70g lighter per tyre
- Pulsar compound balances rolling efficiency, grip and durability
- Race Casing built around the pressures modern wide road tyres run
- SealSkin tread protection for rough pavement and race conditions
- Carbon BeadLock rigid carbon fibre beads that will not stretch
- Optimised for 25mm internal width hookless rims
- Tubeless ready from the bead outwards
Specification
- Sizes: 700 x 29c, 700 x 34c, 700 x 38c
- ETRTO: 29-622, 34-622, 38-622
- Weight: 290g (29mm), 320g (34mm), 350g (38mm)
- Casing: Race Casing, 120 TPI
- Compound: Pulsar
- Puncture protection: SealSkin tread protection
- Bead: Carbon BeadLock
- Rim compatibility: optimised for 25mm internal hookless rims
- Tubeless: Tubeless ready
- Minimum sealant: 55ml (29mm), 65ml (34mm), 80ml (38mm)
- Colour: Black
Protocol RCR Road Tyre
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Road tyres have been getting wider for years, but the engineering attention has largely stayed with the 25s and 28s. The Protocol RCR is Silca's answer to that: the first road tyres in this size range designed and optimised with the same care as a dedicated racing tyre, taking a volume-first approach that adds width and speed without adding bulk.
The numbers are the interesting part. In Silca's testing the 38mm RCR rolled at 31.7 watts against 40.5 watts for the competitor tyre it was measured against, while weighing 70 grams less per tyre. That combination - more air, less drag, less weight - is what makes a wide road tyre worth running rather than simply tolerating.
Pulsar compound handles grip and durability, the 120 TPI Race Casing is built around the pressures these widths actually run, and SealSkin tread protection keeps punctures at bay on rough surfaces. Carbon BeadLock uses rigid carbon fibre beads that will not stretch, and the whole range is optimised for 25mm internal hookless rims. Silca pitch it from local criteriums to the cobbles of Paris-Roubaix, and the 29mm through 38mm spread covers most modern road and all-road bikes.
Features
- Wide road tyres engineered with full race-tyre attention rather than scaled up from narrower sizes
- 38mm tested at 31.7 watts rolling resistance against 40.5 watts for the benchmark competitor, and 70g lighter per tyre
- Pulsar compound balances rolling efficiency, grip and durability
- Race Casing built around the pressures modern wide road tyres run
- SealSkin tread protection for rough pavement and race conditions
- Carbon BeadLock rigid carbon fibre beads that will not stretch
- Optimised for 25mm internal width hookless rims
- Tubeless ready from the bead outwards
Specification
- Sizes: 700 x 29c, 700 x 34c, 700 x 38c
- ETRTO: 29-622, 34-622, 38-622
- Weight: 290g (29mm), 320g (34mm), 350g (38mm)
- Casing: Race Casing, 120 TPI
- Compound: Pulsar
- Puncture protection: SealSkin tread protection
- Bead: Carbon BeadLock
- Rim compatibility: optimised for 25mm internal hookless rims
- Tubeless: Tubeless ready
- Minimum sealant: 55ml (29mm), 65ml (34mm), 80ml (38mm)
- Colour: Black