Silca built its reputation on data, and the Protocol range is what happens when years of tyre testing finally get turned into rubber. The RCG-1 is the fastest tyre in the gravel line-up, aimed squarely at hardpack, fire road and the long tarmac transfers that quietly decide gravel races. Silca describe it as the rolling speed of a hardpack slick with the high-volume compliance of an XC race tyre, and the tread backs that up.
The centre is a low, ramped strip that keeps rolling resistance down without going fully slick, so there is still bite when the surface turns dusty. Move out to the shoulder and the knobs get taller and more elongated, giving you something to lean on through loose corners. Underneath sits the Race Casing, a 120 TPI construction designed around the lower pressures that modern wide rims and 45mm-plus tyres actually run, so the tyre holds its shape instead of squirming. Ghost Shield puncture protection is the lightest in the range, picked to look after the casing without dulling the ride.
If you race the faster, smoother end of the calendar - think Gravel Worlds or SBT GRVL - or you simply want a quick-rolling tyre for mixed road and gravel days, this is the one to start with.
Features
- The fastest tyre in the Protocol gravel range, built for hardpack and high speed
- Dual-personality tread: low ramped centre for efficiency, elongated side knobs for cornering grip
- Pulsar compound balances rolling efficiency, grip and durability rather than trading one for another
- Race Casing developed around modern low-pressure, wide-rim setups
- Ghost Shield puncture protection, tuned to protect the casing with minimal weight or speed penalty
- CarbonBead BeadLock carbon fibre bead keeps the tyre dimensionally stable over its life
- Tubeless ready from the bead outwards
- Ideal for fast gravel racing and road-to-dirt mixed-surface riding
Specification
- Sizes: 700 x 45c, 700 x 50c, 700 x 55c
- ETRTO: 45-622, 50-622, 55-622
- Weight: 460g (45mm), 510g (50mm), 535g (55mm)
- Casing: Race Casing, 120 TPI
- Compound: Pulsar
- Puncture protection: Ghost Shield
- Bead: CarbonBead BeadLock
- Tubeless: Tubeless ready
- Minimum sealant: 90ml (45mm), 100ml (50mm and 55mm)
- Colour: Black
Protocol RCG-1 Gravel Tyre
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Silca built its reputation on data, and the Protocol range is what happens when years of tyre testing finally get turned into rubber. The RCG-1 is the fastest tyre in the gravel line-up, aimed squarely at hardpack, fire road and the long tarmac transfers that quietly decide gravel races. Silca describe it as the rolling speed of a hardpack slick with the high-volume compliance of an XC race tyre, and the tread backs that up.
The centre is a low, ramped strip that keeps rolling resistance down without going fully slick, so there is still bite when the surface turns dusty. Move out to the shoulder and the knobs get taller and more elongated, giving you something to lean on through loose corners. Underneath sits the Race Casing, a 120 TPI construction designed around the lower pressures that modern wide rims and 45mm-plus tyres actually run, so the tyre holds its shape instead of squirming. Ghost Shield puncture protection is the lightest in the range, picked to look after the casing without dulling the ride.
If you race the faster, smoother end of the calendar - think Gravel Worlds or SBT GRVL - or you simply want a quick-rolling tyre for mixed road and gravel days, this is the one to start with.
Features
- The fastest tyre in the Protocol gravel range, built for hardpack and high speed
- Dual-personality tread: low ramped centre for efficiency, elongated side knobs for cornering grip
- Pulsar compound balances rolling efficiency, grip and durability rather than trading one for another
- Race Casing developed around modern low-pressure, wide-rim setups
- Ghost Shield puncture protection, tuned to protect the casing with minimal weight or speed penalty
- CarbonBead BeadLock carbon fibre bead keeps the tyre dimensionally stable over its life
- Tubeless ready from the bead outwards
- Ideal for fast gravel racing and road-to-dirt mixed-surface riding
Specification
- Sizes: 700 x 45c, 700 x 50c, 700 x 55c
- ETRTO: 45-622, 50-622, 55-622
- Weight: 460g (45mm), 510g (50mm), 535g (55mm)
- Casing: Race Casing, 120 TPI
- Compound: Pulsar
- Puncture protection: Ghost Shield
- Bead: CarbonBead BeadLock
- Tubeless: Tubeless ready
- Minimum sealant: 90ml (45mm), 100ml (50mm and 55mm)
- Colour: Black