Shimano GRX ST-RX610 / BR-RX400 Disc Brake - STI | Flat Mount

{"id":8253371318466,"title":"Shimano GRX ST-RX610 \/ BR-RX400 Disc Brake - STI | Flat Mount | J-Kit - 2-speed | left (L) | front (F) and STI | Flat Mount | J-Kit - 12-speed | right (R) | rear (R)","handle":"shimano-grx-st-rx610-br-rx400-disc-brake-sti-flat-mount-j-kit-2-speed-left-l-front-f-and-sti-flat-mount-j-kit-12-speed-right-r-rear-r","description":"\u003ch3\u003eShimano GRX ST-RX610 brake\/shift lever\u003c\/h3\u003e\n\u003cp\u003e\u003cignoretranslation\u003eGravel for Everyone.\u003c\/ignoretranslation\u003e\u003cspan\u003e \u003c\/span\u003eThe GRX ST-RX610 STI lever stands for unsurpassed comfort and a light, responsive shifting behavior in mixed terrain. Whether touring or racing, the textured grip shape combined with the non-slip surface of the brake lever noticeably increases control on uneven terrain. Adjustable in reach and free stroke.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eShimano GRX BR-RX400 disc brake caliper\u003c\/h3\u003e\n\u003cp\u003eAttack the toughest terrain without hesitation with the GRX BR-RX400 hydraulic caliper. Its 2-piston design not only provides more control on rough terrain, but also offers stable braking performance in all conditions. The disc brake caliper is attached directly to the frame or fork via\u003cspan\u003e \u003c\/span\u003e\u003cignoretranslation\u003eFlat Mount\u003c\/ignoretranslation\u003e\u003cspan\u003e \u003c\/span\u003esystem.\u003c\/p\u003e\n\u003cp\u003e\u003cignoretranslation\u003e\u003cstrong\u003eDual Control Lever (DCL) |\u003c\/strong\u003e\u003c\/ignoretranslation\u003e\u003cspan\u003e \u003c\/span\u003eThe Shimano DCL levers combine braking and shifting functions in one control unit for easy as well as comfortable operation. In raising the standard of performance, their innovative ergonomics are even more important to consider than adding additional gearing. However, the highlight of the STI shifters (\u003cignoretranslation\u003eShimano Total Integration\u003c\/ignoretranslation\u003e) shifters, is the ability to change gears front and rear with just one finger. The\u003cspan\u003e \u003c\/span\u003e\u003cignoretranslation\u003eDual Control\u003c\/ignoretranslation\u003e\u003cspan\u003e \u003c\/span\u003elevers owe this not only to an extremely precise and smooth operation, but also to the same stability for which Shimano's MTB technologies are already known.\u003c\/p\u003e\n\u003cp\u003e\u003cignoretranslation\u003e\u003cstrong\u003eJ-Kit (Easy Hose Joint System) |\u003c\/strong\u003e\u003c\/ignoretranslation\u003e\u003cspan\u003e \u003c\/span\u003eFor brake systems with\u003cspan\u003e \u003c\/span\u003e\u003cignoretranslation\u003eJ-Kit\u003c\/ignoretranslation\u003e\u003cspan\u003e \u003c\/span\u003ebrake hose connection, the brake lever has an integrated squeeze seal (olive), which makes the installation and removal of the brake line much easier overall.\u003c\/p\u003e\n\u003cp\u003e\u003cignoretranslation\u003e\u003cstrong\u003eIce Technologies |\u003c\/strong\u003e\u003c\/ignoretranslation\u003e\u003cspan\u003e \u003c\/span\u003eIn order to keep the braking power at longer continuous operation consistently high, Shimano has developed the\u003cspan\u003e \u003c\/span\u003e\u003cignoretranslation\u003eIce-Tech\u003c\/ignoretranslation\u003e\u003cspan\u003e \u003c\/span\u003ecooling technology for brake discs and brake pads. Brake pads with\u003cspan\u003e \u003c\/span\u003e\u003cignoretranslation\u003eIce Technologies\u003c\/ignoretranslation\u003e\u003cspan\u003e \u003c\/span\u003efeature cooling fins made of aluminum, which better dissipate heat. In conjunction with the optimized radiation properties of the rotor, this results in a longer durability of the pads, while brake noise and fading are minimized.\u003c\/p\u003e\n\u003chr class=\"dividing-rule\"\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e\u003cbr\u003eSTI lever: aluminum (painted), composite\u003cbr\u003ecaliper: aluminum (painted)\u003cbr\u003epistons: resin\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003efront derailleur: FD-RX820, FD-R7100\u003c\/li\u003e\n\u003cli\u003erear derailleur: RD-RX820, RD-R7100\u003c\/li\u003e\n\u003cli\u003esub brake lever: BL-RX812\u003c\/li\u003e\n\u003cli\u003ebrake disc: SM-RT70, SM-RT64\u003c\/li\u003e\n\u003cli\u003ebrake pads: K05S-RX, K04S-MX, L05A-RF, L04C-MF\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWeight (manufacturer's specification):\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eapprox. 610 g (STI lever, pair)\u003c\/span\u003e\u003c\/p\u003e","published_at":"2026-02-12T17:37:04+08:00","created_at":"2025-12-04T15:32:12+08:00","vendor":"Shimano","type":"","tags":[],"price":22500,"price_min":22500,"price_max":44000,"available":true,"price_varies":true,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":46143383273666,"title":"STI | Flat Mount | J-Kit - 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12-speed | right (R) | rear (R)","option1":"STI | Flat Mount | J-Kit - 12-speed | right (R) | rear (R)","option2":null,"option3":null,"sku":"IRX6101DRRDSC170A","requires_shipping":true,"taxable":true,"featured_image":{"id":43561947496642,"product_id":8253371318466,"position":2,"created_at":"2025-12-04T15:31:23+08:00","updated_at":"2025-12-04T15:31:24+08:00","alt":null,"width":1080,"height":1080,"src":"\/\/barquebike.com\/cdn\/shop\/files\/IRX6101DRRDSC170A.png?v=1764833484","variant_ids":[46143383306434]},"available":true,"name":"Shimano GRX ST-RX610 \/ BR-RX400 Disc Brake - STI | Flat Mount | J-Kit - 2-speed | left (L) | front (F) and STI | Flat Mount | J-Kit - 12-speed | right (R) | rear (R) - STI | Flat Mount | J-Kit - 12-speed | right (R) | rear (R)","public_title":"STI | Flat Mount | J-Kit - 12-speed | right (R) | rear (R)","options":["STI | Flat Mount | J-Kit - 12-speed | right (R) | rear (R)"],"price":22500,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":"","featured_media":{"alt":null,"id":35110511050946,"position":2,"preview_image":{"aspect_ratio":1.0,"height":1080,"width":1080,"src":"\/\/barquebike.com\/cdn\/shop\/files\/IRX6101DRRDSC170A.png?v=1764833484"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":46143383339202,"title":"Set ( Front set + Rear set)","option1":"Set ( Front set + Rear set)","option2":null,"option3":null,"sku":"IRX6101DLF6SC100A+IRX6101DRRDSC170A","requires_shipping":true,"taxable":true,"featured_image":{"id":43561947627714,"product_id":8253371318466,"position":3,"created_at":"2025-12-04T15:31:26+08:00","updated_at":"2025-12-04T15:31:27+08:00","alt":null,"width":1080,"height":1080,"src":"\/\/barquebike.com\/cdn\/shop\/files\/IRX6101DLF6SC100A_IRX6101DRRDSC170A_6a0d29d7-1792-4c8f-ae33-f247ef62bf06.png?v=1764833487","variant_ids":[46143383339202]},"available":true,"name":"Shimano GRX ST-RX610 \/ BR-RX400 Disc Brake - STI | Flat Mount | J-Kit - 2-speed | left (L) | front (F) and STI | Flat Mount | J-Kit - 12-speed | right (R) | rear (R) - Set ( Front set + Rear set)","public_title":"Set ( Front set + Rear set)","options":["Set ( Front set + Rear set)"],"price":44000,"weight":0,"compare_at_price":null,"inventory_management":"shopify","barcode":"","featured_media":{"alt":null,"id":35110511182018,"position":3,"preview_image":{"aspect_ratio":1.0,"height":1080,"width":1080,"src":"\/\/barquebike.com\/cdn\/shop\/files\/IRX6101DLF6SC100A_IRX6101DRRDSC170A_6a0d29d7-1792-4c8f-ae33-f247ef62bf06.png?v=1764833487"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/barquebike.com\/cdn\/shop\/files\/IRX6101DLF6SC100A_IRX6101DRRDSC170A.png?v=1764833175","\/\/barquebike.com\/cdn\/shop\/files\/IRX6101DRRDSC170A.png?v=1764833484","\/\/barquebike.com\/cdn\/shop\/files\/IRX6101DLF6SC100A_IRX6101DRRDSC170A_6a0d29d7-1792-4c8f-ae33-f247ef62bf06.png?v=1764833487"],"featured_image":"\/\/barquebike.com\/cdn\/shop\/files\/IRX6101DLF6SC100A_IRX6101DRRDSC170A.png?v=1764833175","options":["Option"],"media":[{"alt":null,"id":35110496403650,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1080,"width":1080,"src":"\/\/barquebike.com\/cdn\/shop\/files\/IRX6101DLF6SC100A_IRX6101DRRDSC170A.png?v=1764833175"},"aspect_ratio":1.0,"height":1080,"media_type":"image","src":"\/\/barquebike.com\/cdn\/shop\/files\/IRX6101DLF6SC100A_IRX6101DRRDSC170A.png?v=1764833175","width":1080},{"alt":null,"id":35110511050946,"position":2,"preview_image":{"aspect_ratio":1.0,"height":1080,"width":1080,"src":"\/\/barquebike.com\/cdn\/shop\/files\/IRX6101DRRDSC170A.png?v=1764833484"},"aspect_ratio":1.0,"height":1080,"media_type":"image","src":"\/\/barquebike.com\/cdn\/shop\/files\/IRX6101DRRDSC170A.png?v=1764833484","width":1080},{"alt":null,"id":35110511182018,"position":3,"preview_image":{"aspect_ratio":1.0,"height":1080,"width":1080,"src":"\/\/barquebike.com\/cdn\/shop\/files\/IRX6101DLF6SC100A_IRX6101DRRDSC170A_6a0d29d7-1792-4c8f-ae33-f247ef62bf06.png?v=1764833487"},"aspect_ratio":1.0,"height":1080,"media_type":"image","src":"\/\/barquebike.com\/cdn\/shop\/files\/IRX6101DLF6SC100A_IRX6101DRRDSC170A_6a0d29d7-1792-4c8f-ae33-f247ef62bf06.png?v=1764833487","width":1080}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eShimano GRX ST-RX610 brake\/shift lever\u003c\/h3\u003e\n\u003cp\u003e\u003cignoretranslation\u003eGravel for Everyone.\u003c\/ignoretranslation\u003e\u003cspan\u003e \u003c\/span\u003eThe GRX ST-RX610 STI lever stands for unsurpassed comfort and a light, responsive shifting behavior in mixed terrain. Whether touring or racing, the textured grip shape combined with the non-slip surface of the brake lever noticeably increases control on uneven terrain. Adjustable in reach and free stroke.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eShimano GRX BR-RX400 disc brake caliper\u003c\/h3\u003e\n\u003cp\u003eAttack the toughest terrain without hesitation with the GRX BR-RX400 hydraulic caliper. Its 2-piston design not only provides more control on rough terrain, but also offers stable braking performance in all conditions. The disc brake caliper is attached directly to the frame or fork via\u003cspan\u003e \u003c\/span\u003e\u003cignoretranslation\u003eFlat Mount\u003c\/ignoretranslation\u003e\u003cspan\u003e \u003c\/span\u003esystem.\u003c\/p\u003e\n\u003cp\u003e\u003cignoretranslation\u003e\u003cstrong\u003eDual Control Lever (DCL) |\u003c\/strong\u003e\u003c\/ignoretranslation\u003e\u003cspan\u003e \u003c\/span\u003eThe Shimano DCL levers combine braking and shifting functions in one control unit for easy as well as comfortable operation. In raising the standard of performance, their innovative ergonomics are even more important to consider than adding additional gearing. However, the highlight of the STI shifters (\u003cignoretranslation\u003eShimano Total Integration\u003c\/ignoretranslation\u003e) shifters, is the ability to change gears front and rear with just one finger. The\u003cspan\u003e \u003c\/span\u003e\u003cignoretranslation\u003eDual Control\u003c\/ignoretranslation\u003e\u003cspan\u003e \u003c\/span\u003elevers owe this not only to an extremely precise and smooth operation, but also to the same stability for which Shimano's MTB technologies are already known.\u003c\/p\u003e\n\u003cp\u003e\u003cignoretranslation\u003e\u003cstrong\u003eJ-Kit (Easy Hose Joint System) |\u003c\/strong\u003e\u003c\/ignoretranslation\u003e\u003cspan\u003e \u003c\/span\u003eFor brake systems with\u003cspan\u003e \u003c\/span\u003e\u003cignoretranslation\u003eJ-Kit\u003c\/ignoretranslation\u003e\u003cspan\u003e \u003c\/span\u003ebrake hose connection, the brake lever has an integrated squeeze seal (olive), which makes the installation and removal of the brake line much easier overall.\u003c\/p\u003e\n\u003cp\u003e\u003cignoretranslation\u003e\u003cstrong\u003eIce Technologies |\u003c\/strong\u003e\u003c\/ignoretranslation\u003e\u003cspan\u003e \u003c\/span\u003eIn order to keep the braking power at longer continuous operation consistently high, Shimano has developed the\u003cspan\u003e \u003c\/span\u003e\u003cignoretranslation\u003eIce-Tech\u003c\/ignoretranslation\u003e\u003cspan\u003e \u003c\/span\u003ecooling technology for brake discs and brake pads. Brake pads with\u003cspan\u003e \u003c\/span\u003e\u003cignoretranslation\u003eIce Technologies\u003c\/ignoretranslation\u003e\u003cspan\u003e \u003c\/span\u003efeature cooling fins made of aluminum, which better dissipate heat. In conjunction with the optimized radiation properties of the rotor, this results in a longer durability of the pads, while brake noise and fading are minimized.\u003c\/p\u003e\n\u003chr class=\"dividing-rule\"\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e\u003cbr\u003eSTI lever: aluminum (painted), composite\u003cbr\u003ecaliper: aluminum (painted)\u003cbr\u003epistons: resin\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003efront derailleur: FD-RX820, FD-R7100\u003c\/li\u003e\n\u003cli\u003erear derailleur: RD-RX820, RD-R7100\u003c\/li\u003e\n\u003cli\u003esub brake lever: BL-RX812\u003c\/li\u003e\n\u003cli\u003ebrake disc: SM-RT70, SM-RT64\u003c\/li\u003e\n\u003cli\u003ebrake pads: K05S-RX, K04S-MX, L05A-RF, L04C-MF\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWeight (manufacturer's specification):\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eapprox. 610 g (STI lever, pair)\u003c\/span\u003e\u003c\/p\u003e"}

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Shimano GRX ST-RX610 / BR-RX400 Disc Brake - STI | Flat Mount | J-Kit - 2-speed | left (L) | front (F) and STI | Flat Mount | J-Kit - 12-speed | right (R) | rear (R)

Shimano GRX ST-RX610 / BR-RX400 Disc Brake - STI | Flat Mount | J-Kit - 2-speed | left (L) | front (F) and STI | Flat Mount | J-Kit - 12-speed | right (R) | rear (R)

Shimano GRX ST-RX610 brake/shift lever

Shimano GRX BR-RX400 disc brake caliper

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