{"product_id":"silca-protocol-rcg-4-gravel-tyre-700c","title":"Silca Protocol RCG-4 Gravel Tyre 700C","description":"\u003cstrong\u003eBUILT FOR THE ROUGHEST GRAVEL AND MOST UNPREDICTABLE CONDITIONS, THE SILCA PROTOCOL RCG-4 COMBINES AN AGGRESSIVE MUD-SHEDDING TREAD, PULSAR COMPOUND AND FULL SEALSKIN BEAD-TO-BEAD PROTECTION TO DELIVER CONFIDENT GRIP, DURABILITY AND SPEED ACROSS MUD, SAND, LOOSE ROCK AND TECHNICAL TERRAIN.\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eThe SILCA Protocol RCG-4 is the most aggressive gravel tyre in the Protocol range, designed for riders who refuse to let rough terrain or challenging conditions dictate their pace.\u003cbr\u003eIts widely spaced tread uses fewer but significantly larger knobs than the RCG-3, creating open channels that help clear mud and loose material rather than allowing the tread to clog. Taller, wider knobs provide increased bite across shifting surfaces while giving riders greater support and confidence when cornering through technical terrain.\u003cbr\u003eFull SealSkin bead-to-bead puncture protection adds durability across both the tread and sidewalls, making the RCG-4 particularly well suited to rocky courses, technical gravel racing and adventurous riding where casing protection can be just as important as outright speed.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eKEY FEATURES\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eAggressive Mud-Shedding Tread\u003c\/strong\u003e\u003cbr\u003eWidely spaced, oversized knobs help prevent mud, dirt and sticky surfaces from packing into the tread, allowing the tyre to maintain traction in challenging conditions.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHigh-Traction Knob Profile\u003c\/strong\u003e\u003cbr\u003eFewer but significantly larger knobs than the RCG-3 provide increased bite across loose and shifting terrain, including mud, sand and steep loose rock.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSealSkin Bead-to-Bead Protection\u003c\/strong\u003e\u003cbr\u003eEnhanced puncture protection extends across the tyre from bead to bead, providing additional defence for both the tread and sidewalls when riding through rocky and technical terrain.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePulsar Compound\u003c\/strong\u003e\u003cbr\u003eSILCA's high-performance rubber and silica race compound balances rolling efficiency, traction and durability to help maintain speed despite the RCG-4's aggressive tread.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e120 TPI Casing\u003c\/strong\u003e\u003cbr\u003eA high-quality 120 TPI construction provides a responsive, performance-focused ride while supporting the larger tyre volumes and lower pressures used on modern gravel bikes.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eHigh-Volume Performance\u003c\/strong\u003e\u003cbr\u003eAvailable in 45 mm, 50 mm and 55 mm widths, allowing riders to maximise traction, comfort and control according to terrain and bike clearance.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eTubeless Ready\u003c\/strong\u003e\u003cbr\u003eEngineered specifically for modern tubeless systems, allowing lower operating pressures for increased grip, compliance and control.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eTECHNOLOGY\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePulsar Compound\u003c\/strong\u003e\u003cbr\u003eSILCA's performance rubber and silica compound is engineered to balance low rolling resistance, grip and durability rather than sacrificing one characteristic to maximise another. This helps the RCG-4 retain race-focused efficiency despite its more aggressive tread design.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eRace Casing\u003c\/strong\u003e\u003cbr\u003eA performance casing architecture developed around the lower pressures and wider rims used by modern gravel bikes. The construction helps maintain tyre shape and ride quality while delivering the compliance required for rough terrain.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSealSkin Bead-to-Bead Protection\u003c\/strong\u003e\u003cbr\u003eThe RCG-4 receives the highest level of casing protection in the Protocol gravel range. SealSkin protection extends from bead to bead, adding defence to both the tread and sidewalls against cuts, impacts and punctures encountered on rocky and technical terrain.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCarbonBead BeadLock\u003c\/strong\u003e\u003cbr\u003eCarbon fibre bead technology helps maintain dimensional stability throughout the tyre's service life, keeping the tyre's dimensions consistent after installation.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eAggressive Open Tread Architecture\u003c\/strong\u003e\u003cbr\u003eThe RCG-4 uses fewer, larger and more widely spaced knobs than the RCG-3. The open spacing helps release mud and sticky debris instead of allowing it to accumulate between the knobs and reduce traction.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eEnhanced Knob Protection\u003c\/strong\u003e\u003cbr\u003eWider and taller tread blocks place additional rubber between the casing and the terrain, providing another layer of defence against rocks and impacts while increasing grip.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eTubeless Ready Construction\u003c\/strong\u003e\u003cbr\u003eEngineered from the bead upwards for use with modern tubeless systems, allowing tyre, rim, sealant and lower operating pressures to work together for increased traction, comfort and puncture resistance.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eWHY TO CHOOSE\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eChoose the SILCA Protocol RCG-4 when your gravel riding regularly extends beyond smooth roads and hardpack surfaces into genuinely challenging terrain.\u003cbr\u003eWhere the RCG-1 prioritises outright rolling speed and the RCG-3 balances speed with mixed-terrain versatility, the RCG-4 shifts the emphasis towards maximum grip, control and protection.\u003cbr\u003eIts aggressive open tread is particularly effective when mud, sand or loose material would overwhelm a faster, closely spaced gravel tread. Full bead-to-bead SealSkin protection also makes it the strongest choice in the Protocol gravel range for rocky courses and terrain where sidewall damage is a genuine concern.\u003cbr\u003eFor riders tackling technical gravel races, adventurous routes or unpredictable Australian conditions, the RCG-4 provides the traction and protection required to keep pushing when the terrain becomes difficult.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePERFECT FOR\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eTechnical gravel racing, adventure riding, muddy courses, sand, steep loose climbs and descents, rocky gravel roads, singletrack and rough mixed-terrain routes.\u003cbr\u003eAn excellent choice for Australian gravel riders looking for maximum traction and puncture protection from a performance-focused tubeless gravel tyre, particularly when conditions are too loose, muddy or technical for a conventional fast-rolling gravel tread.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFULL SPECIFICATIONS\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e SILCA\u003cbr\u003e\u003cstrong\u003eModel:\u003c\/strong\u003e Protocol RCG-4\u003cbr\u003e\u003cstrong\u003eType:\u003c\/strong\u003e Aggressive performance gravel tyre\u003cbr\u003e\u003cstrong\u003eWheel Size:\u003c\/strong\u003e 700C\u003cbr\u003e\u003cstrong\u003eAvailable Widths:\u003c\/strong\u003e 45 mm, 50 mm, 55 mm\u003cbr\u003e\u003cstrong\u003eETRTO:\u003c\/strong\u003e 45-622, 50-622, 55-622\u003cbr\u003e\u003cstrong\u003eCompound:\u003c\/strong\u003e Pulsar Compound\u003cbr\u003e\u003cstrong\u003eCasing:\u003c\/strong\u003e Race Casing\u003cbr\u003e\u003cstrong\u003eCasing Density:\u003c\/strong\u003e 120 TPI\u003cbr\u003e\u003cstrong\u003ePuncture Protection:\u003c\/strong\u003e SealSkin Bead-to-Bead Protection\u003cbr\u003e\u003cstrong\u003eBead Technology:\u003c\/strong\u003e CarbonBead BeadLock\u003cbr\u003e\u003cstrong\u003eTread:\u003c\/strong\u003e Aggressive, widely spaced large-knob tread\u003cbr\u003e\u003cstrong\u003eTubeless Ready:\u003c\/strong\u003e Yes\u003cbr\u003e\u003cstrong\u003e45 mm Weight:\u003c\/strong\u003e Approximately 545 g\u003cbr\u003e\u003cstrong\u003e50 mm Weight:\u003c\/strong\u003e Approximately 620 g\u003cbr\u003e\u003cstrong\u003e55 mm Weight:\u003c\/strong\u003e Approximately 650 g\u003cbr\u003e\u003cstrong\u003eMeasured Rim Internal Width:\u003c\/strong\u003e 25 mm\u003cbr\u003e\u003cstrong\u003eRecommended Minimum Sealant - 45 mm:\u003c\/strong\u003e 90 ml\u003cbr\u003e\u003cstrong\u003eRecommended Minimum Sealant - 50 mm:\u003c\/strong\u003e 100 ml\u003cbr\u003e\u003cstrong\u003eRecommended Minimum Sealant - 55 mm:\u003c\/strong\u003e 100 ml\u003cbr\u003e\u003cstrong\u003ePrimary Conditions:\u003c\/strong\u003e Mud, sand, loose rock, technical gravel and extreme conditions","brand":"Silca","offers":[{"title":"45MM","offer_id":52609556087082,"sku":"FP_93071","price":159.95,"currency_code":"AUD","in_stock":false},{"title":"50MM","offer_id":52609556119850,"sku":"FP_93072","price":159.95,"currency_code":"AUD","in_stock":true},{"title":"55MM","offer_id":52609556152618,"sku":"FP_93073","price":159.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0843\/7389\/7514\/files\/MediumProduct_ZFLXCDRCG4si_195639.jpg?v=1789455403","url":"https:\/\/giantbrisbane.com.au\/products\/silca-protocol-rcg-4-gravel-tyre-700c","provider":"Giant Brisbane","version":"1.0","type":"link"}