The Shadow design of the Shimano Dura-Ace Di2 rear derailleur means it sits under the chainstay and cassette to give a slimmer profile, which not only improves aerodynamics but offers faster wheel changes and helps to prevent damage in a crash. It also offers faster and more precise shifting than ever before. Shimano's 9150 groupset brings its Syncro-Shift technology to the road too. Syncro-Shift technology enables the Di2 front derailleur to read the position of your Shimano Dura-Ace R9150 rear derailleur and will automatically operate the front shift to position the gears in the most efficient gear and best chain line, so you'll never have to worry about front shifting and correction shifts again.
Shimano Dura-Ace R9150 Di2 11sp Rear DerailleurCombining the very best of Shimano’s electronic shifting technologies with its race-proven mountain bike “Shadow” cage design, the Dura-Ace R9150 Di2 road bike rear derailleur shifts in an instant and has enhanced aerodynamics. The updated cage position means it rests directly under your frame’s chainstay, reducing drag and protecting it in the event of an unfortunate racing incident.The Shadow design also offers faster wheel changes thanks to the fact that it moves the derailleur out of the way of the dropouts. It also offers faster and more precise shifting than ever before. Shimano's 9150 groupset brings its Syncro-Shift technology to the road too. Syncro-Shift technology enables the front derailleur to read the position of the rear derailleur. The front shift is then automatically operated to position the gears in the most efficient gear and best chain line. This means you'll never have to worry about front shifting and correction shifts again.Features: Speed: 11-Speed Compatibility: Shimano Di2 road shifters (Dura-Ace and Ultegra with E-tube connection) Maximum Low Gear Sprocket: 30T (Minimum 25T) Minimum High Gear Sprocket: 11T (Maximum: 14T) Maximum Front Difference: 16T Total Capacity: 33T Mount Type: Standard hanger mount Clutch Type: No Ergonomic shifting operation without stress Shimano synchronised shift Low profile rear derailleur design Shimano Shadow cage design Race endurance for less damage in a crash Maintains compact and smooth appearance Manufacturer's Part Number: RD-R9150 Weight: 204gA 2 year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
The Arch MK4 is the wheelset a lot of us here at Stan s choose to ride. All-mountain, Downcountry, Trailduro whatever they re calling it this week, when you like pushing your limits on climbs, descents, and every kind of trail, this is your wheelset.Versatile 28mm internal rim width optimized for 2.2-2.5 tyresLight and durable 6069 aluminium with welded joint and reinforced spoke bedBST-Asymmetric design combines Stan s legendary easy tubeless inflation with a stronger, more balanced wheel buildNew high-end premium hub - M-pulse ultra-low drag magnetic pawl adjustable hubs with 1.66° engagementMatched wheelsets use traditional J-bend lacing and share a single spoke length for easy serviceabilityConnection program includes 5-year hub warranty, 3-year rim warranty, 1-year crash replacement, and $10 donation to trail maintenance or advocacy group of your choiceThe Arch MK4 s 28mm internal width and patented lightweight, low-profile design is not afraid to climb, while being an absolute monster on the descents. With a welded seam, reinforced spoke bed, and durable 6069 aluminium construction, the Arch MK4 rims give you the confidence to ride everything. When it comes to a consistent and reliable airtight tubeless seal, nothing beats Stan s patented Bead Socket Technology. The Arch MK4 rims feature an asymmetric design with offset spoke holes to improve spoke angle and create a stronger all-around wheel. Unlike most asymmetric rims that suffer from difficult inflation and poor tubeless performance, Stan s BST-Asymmetric design delivers all the advantages of a stronger wheel, with no compromises in tubeless performance. Nobody likes downtime, so the Arch MK4 wheelset is built with traditional J-bend spokes based on their proven strength, ride quality, and easy serviceability. Stan s has always made it easy to find replacement spokes should you ever damage your wheel, and now we ve made it even easier. MK4 front and rear wheels of the same diameter all use the exact same very common spoke length, both sides, front and rear. Serviceability doesn t get any easier than that.Available with Shimano Micro Spline, HG, or SRAM XDR freehub, and 6-bolt or Centerlock brake style, with options to fit all popular axle configurations. Tubeless ready with rim tape installed.The Arch MK4 is our most versatile wheelset, and the best aluminium wheelset available for riders who want to push limits on every trail. Up, down, and wherever the ride takes you, the Arch MK4 wheelset has it under control.What s included: Arch MK4 wheels include pre-installed tape for tubeless use and presta valves. For full specification please go to the specification tab.
The Arch MK4 is the wheelset a lot of us here at Stan s choose to ride. All-mountain, Downcountry, Trailduro whatever they re calling it this week, when you like pushing your limits on climbs, descents, and every kind of trail, this is your wheelset.Versatile 28mm internal rim width optimized for 2.2-2.5 tyresLight and durable 6069 aluminium with welded joint and reinforced spoke bedBST-Asymmetric design combines Stan s legendary easy tubeless inflation with a stronger, more balanced wheel buildNew high-end premium hub - M-pulse ultra-low drag magnetic pawl adjustable hubs with 1.66° engagementMatched wheelsets use traditional J-bend lacing and share a single spoke length for easy serviceabilityConnection program includes 5-year hub warranty, 3-year rim warranty, 1-year crash replacement, and $10 donation to trail maintenance or advocacy group of your choiceThe Arch MK4 s 28mm internal width and patented lightweight, low-profile design is not afraid to climb, while being an absolute monster on the descents. With a welded seam, reinforced spoke bed, and durable 6069 aluminium construction, the Arch MK4 rims give you the confidence to ride everything. When it comes to a consistent and reliable airtight tubeless seal, nothing beats Stan s patented Bead Socket Technology. The Arch MK4 rims feature an asymmetric design with offset spoke holes to improve spoke angle and create a stronger all-around wheel. Unlike most asymmetric rims that suffer from difficult inflation and poor tubeless performance, Stan s BST-Asymmetric design delivers all the advantages of a stronger wheel, with no compromises in tubeless performance. Nobody likes downtime, so the Arch MK4 wheelset is built with traditional J-bend spokes based on their proven strength, ride quality, and easy serviceability. Stan s has always made it easy to find replacement spokes should you ever damage your wheel, and now we ve made it even easier. MK4 front and rear wheels of the same diameter all use the exact same very common spoke length, both sides, front and rear. Serviceability doesn t get any easier than that.Available with Shimano Micro Spline, HG, or SRAM XDR freehub, and 6-bolt or Centerlock brake style, with options to fit all popular axle configurations. Tubeless ready with rim tape installed.The Arch MK4 is our most versatile wheelset, and the best aluminium wheelset available for riders who want to push limits on every trail. Up, down, and wherever the ride takes you, the Arch MK4 wheelset has it under control.What s included: Arch MK4 wheels include pre-installed tape for tubeless use and presta valves. For full specification please go to the specification tab.
The Arch MK4 is the wheelset a lot of us here at Stan s choose to ride. All-mountain, Downcountry, Trailduro whatever they re calling it this week, when you like pushing your limits on climbs, descents, and every kind of trail, this is your wheelset.Versatile 28mm internal rim width optimized for 2.2-2.5 tyresLight and durable 6069 aluminium with welded joint and reinforced spoke bedBST-Asymmetric design combines Stan s legendary easy tubeless inflation with a stronger, more balanced wheel buildNew high-end premium hub - M-pulse ultra-low drag magnetic pawl adjustable hubs with 1.66° engagementMatched wheelsets use traditional J-bend lacing and share a single spoke length for easy serviceabilityConnection program includes 5-year hub warranty, 3-year rim warranty, 1-year crash replacement, and $10 donation to trail maintenance or advocacy group of your choiceThe Arch MK4 s 28mm internal width and patented lightweight, low-profile design is not afraid to climb, while being an absolute monster on the descents. With a welded seam, reinforced spoke bed, and durable 6069 aluminium construction, the Arch MK4 rims give you the confidence to ride everything. When it comes to a consistent and reliable airtight tubeless seal, nothing beats Stan s patented Bead Socket Technology. The Arch MK4 rims feature an asymmetric design with offset spoke holes to improve spoke angle and create a stronger all-around wheel. Unlike most asymmetric rims that suffer from difficult inflation and poor tubeless performance, Stan s BST-Asymmetric design delivers all the advantages of a stronger wheel, with no compromises in tubeless performance. Nobody likes downtime, so the Arch MK4 wheelset is built with traditional J-bend spokes based on their proven strength, ride quality, and easy serviceability. Stan s has always made it easy to find replacement spokes should you ever damage your wheel, and now we ve made it even easier. MK4 front and rear wheels of the same diameter all use the exact same very common spoke length, both sides, front and rear. Serviceability doesn t get any easier than that.Available with Shimano Micro Spline, HG, or SRAM XDR freehub, and 6-bolt or Centerlock brake style, with options to fit all popular axle configurations. Tubeless ready with rim tape installed.The Arch MK4 is our most versatile wheelset, and the best aluminium wheelset available for riders who want to push limits on every trail. Up, down, and wherever the ride takes you, the Arch MK4 wheelset has it under control.What s included: Arch MK4 wheels include pre-installed tape for tubeless use and presta valves. For full specification please go to the specification tab.
The Arch MK4 is the wheelset a lot of us here at Stan s choose to ride. All-mountain, Downcountry, Trailduro whatever they re calling it this week, when you like pushing your limits on climbs, descents, and every kind of trail, this is your wheelset.Versatile 28mm internal rim width optimized for 2.2-2.5 tyresLight and durable 6069 aluminium with welded joint and reinforced spoke bedBST-Asymmetric design combines Stan s legendary easy tubeless inflation with a stronger, more balanced wheel buildNew high-end premium hub - M-pulse ultra-low drag magnetic pawl adjustable hubs with 1.66° engagementMatched wheelsets use traditional J-bend lacing and share a single spoke length for easy serviceabilityConnection program includes 5-year hub warranty, 3-year rim warranty, 1-year crash replacement, and $10 donation to trail maintenance or advocacy group of your choiceThe Arch MK4 s 28mm internal width and patented lightweight, low-profile design is not afraid to climb, while being an absolute monster on the descents. With a welded seam, reinforced spoke bed, and durable 6069 aluminium construction, the Arch MK4 rims give you the confidence to ride everything. When it comes to a consistent and reliable airtight tubeless seal, nothing beats Stan s patented Bead Socket Technology. The Arch MK4 rims feature an asymmetric design with offset spoke holes to improve spoke angle and create a stronger all-around wheel. Unlike most asymmetric rims that suffer from difficult inflation and poor tubeless performance, Stan s BST-Asymmetric design delivers all the advantages of a stronger wheel, with no compromises in tubeless performance. Nobody likes downtime, so the Arch MK4 wheelset is built with traditional J-bend spokes based on their proven strength, ride quality, and easy serviceability. Stan s has always made it easy to find replacement spokes should you ever damage your wheel, and now we ve made it even easier. MK4 front and rear wheels of the same diameter all use the exact same very common spoke length, both sides, front and rear. Serviceability doesn t get any easier than that.Available with Shimano Micro Spline, HG, or SRAM XDR freehub, and 6-bolt or Centerlock brake style, with options to fit all popular axle configurations. Tubeless ready with rim tape installed.The Arch MK4 is our most versatile wheelset, and the best aluminium wheelset available for riders who want to push limits on every trail. Up, down, and wherever the ride takes you, the Arch MK4 wheelset has it under control.What s included: Arch MK4 wheels include pre-installed tape for tubeless use and presta valves. For full specification please go to the specification tab.
The Arch MK4 is the wheelset a lot of us here at Stan s choose to ride. All-mountain, Downcountry, Trailduro whatever they re calling it this week, when you like pushing your limits on climbs, descents, and every kind of trail, this is your wheelset.Versatile 28mm internal rim width optimized for 2.2-2.5 tyresLight and durable 6069 aluminium with welded joint and reinforced spoke bedBST-Asymmetric design combines Stan s legendary easy tubeless inflation with a stronger, more balanced wheel buildNew high-end premium hub - M-pulse ultra-low drag magnetic pawl adjustable hubs with 1.66° engagementMatched wheelsets use traditional J-bend lacing and share a single spoke length for easy serviceabilityConnection program includes 5-year hub warranty, 3-year rim warranty, 1-year crash replacement, and $10 donation to trail maintenance or advocacy group of your choiceThe Arch MK4 s 28mm internal width and patented lightweight, low-profile design is not afraid to climb, while being an absolute monster on the descents. With a welded seam, reinforced spoke bed, and durable 6069 aluminium construction, the Arch MK4 rims give you the confidence to ride everything. When it comes to a consistent and reliable airtight tubeless seal, nothing beats Stan s patented Bead Socket Technology. The Arch MK4 rims feature an asymmetric design with offset spoke holes to improve spoke angle and create a stronger all-around wheel. Unlike most asymmetric rims that suffer from difficult inflation and poor tubeless performance, Stan s BST-Asymmetric design delivers all the advantages of a stronger wheel, with no compromises in tubeless performance. Nobody likes downtime, so the Arch MK4 wheelset is built with traditional J-bend spokes based on their proven strength, ride quality, and easy serviceability. Stan s has always made it easy to find replacement spokes should you ever damage your wheel, and now we ve made it even easier. MK4 front and rear wheels of the same diameter all use the exact same very common spoke length, both sides, front and rear. Serviceability doesn t get any easier than that.Available with Shimano Micro Spline, HG, or SRAM XDR freehub, and 6-bolt or Centerlock brake style, with options to fit all popular axle configurations. Tubeless ready with rim tape installed.The Arch MK4 is our most versatile wheelset, and the best aluminium wheelset available for riders who want to push limits on every trail. Up, down, and wherever the ride takes you, the Arch MK4 wheelset has it under control.What s included: Arch MK4 wheels include pre-installed tape for tubeless use and presta valves. For full specification please go to the specification tab.
The Arch MK4 is the wheelset a lot of us here at Stan s choose to ride. All-mountain, Downcountry, Trailduro whatever they re calling it this week, when you like pushing your limits on climbs, descents, and every kind of trail, this is your wheelset.Versatile 28mm internal rim width optimized for 2.2-2.5 tyresLight and durable 6069 aluminium with welded joint and reinforced spoke bedBST-Asymmetric design combines Stan s legendary easy tubeless inflation with a stronger, more balanced wheel buildNew high-end premium hub - M-pulse ultra-low drag magnetic pawl adjustable hubs with 1.66° engagementMatched wheelsets use traditional J-bend lacing and share a single spoke length for easy serviceabilityConnection program includes 5-year hub warranty, 3-year rim warranty, 1-year crash replacement, and $10 donation to trail maintenance or advocacy group of your choiceThe Arch MK4 s 28mm internal width and patented lightweight, low-profile design is not afraid to climb, while being an absolute monster on the descents. With a welded seam, reinforced spoke bed, and durable 6069 aluminium construction, the Arch MK4 rims give you the confidence to ride everything. When it comes to a consistent and reliable airtight tubeless seal, nothing beats Stan s patented Bead Socket Technology. The Arch MK4 rims feature an asymmetric design with offset spoke holes to improve spoke angle and create a stronger all-around wheel. Unlike most asymmetric rims that suffer from difficult inflation and poor tubeless performance, Stan s BST-Asymmetric design delivers all the advantages of a stronger wheel, with no compromises in tubeless performance. Nobody likes downtime, so the Arch MK4 wheelset is built with traditional J-bend spokes based on their proven strength, ride quality, and easy serviceability. Stan s has always made it easy to find replacement spokes should you ever damage your wheel, and now we ve made it even easier. MK4 front and rear wheels of the same diameter all use the exact same very common spoke length, both sides, front and rear. Serviceability doesn t get any easier than that.Available with Shimano Micro Spline, HG, or SRAM XDR freehub, and 6-bolt or Centerlock brake style, with options to fit all popular axle configurations. Tubeless ready with rim tape installed.The Arch MK4 is our most versatile wheelset, and the best aluminium wheelset available for riders who want to push limits on every trail. Up, down, and wherever the ride takes you, the Arch MK4 wheelset has it under control.What s included: Arch MK4 wheels include pre-installed tape for tubeless use and presta valves. For full specification please go to the specification tab.
When you re looking for a lightweight Gravel and XC wheels built to roll fast and last forever, the aluminium Crest MK4 is your wheel. 25mm rim width optimised for Gravel and XC tyres up to 2.3 Light and durable 6069 aluminium with welded joint and reinforced spoke bedBST-Asymmetric design combines Stan s legendary easy tubeless inflation with a stronger, more balanced wheel buildNew high-end premium hubMatched wheelsets use traditional J-bend lacing and share a single spoke length for easy serviceabilityConnection program includes 5-year hub warranty, 3-year rim warranty, 1-year crash replacement, and $10 donation to trail maintenance or advocacy group of your choice Crest is the name Stan gave one of his original rim designs, and today it belongs to one of the most advanced rims made. Built of 6069 alloy and featuring a reinforced spoke bed and welded seam, the 25mm wide Crest MK4 rim is made to handle both the higher pressures of 40mm gravel tyres, as well as the lower pressures of 2.3 mountain bike tyres. The asymmetric design of the Crest MK4 rim improves spoke angle to create a stronger wheel, while still offering the easiest to inflate and most reliable airtight tubeless seal found only on Stan s patented Bead Socket Technology rims. Built for people who ride, by people who ride, the Crest MK4 wheelset relies on the proven strength of traditional J-bend spokes. As part of Stan s commitment to make easily serviceable wheels a rider can own for many years, all MK4 series wheels that are the same diameter share a single, very common, spoke length. Front and rear and both sides all use a single length, making replacing damaged spokes as easy as possible.Available with Shimano Micro Spline, HG, or SRAM XDR freehub, and 6-bolt or Centerlock brake style, with options to fit all popular axle configurations. Tubeless ready with rim tape installed. With a lightweight asymmetric tubeless rim laced to one of the most reliable and fastest-rolling hubs made, the Crest MK4 sets the bar for Gravel and XC wheelsets.What s included: Crest MK4 wheels include pre-installed tape for tubeless use and presta valves.
When you re looking for a lightweight Gravel and XC wheels built to roll fast and last forever, the aluminium Crest MK4 is your wheel. 25mm rim width optimised for Gravel and XC tyres up to 2.3 Light and durable 6069 aluminium with welded joint and reinforced spoke bedBST-Asymmetric design combines Stan s legendary easy tubeless inflation with a stronger, more balanced wheel buildNew high-end premium hubMatched wheelsets use traditional J-bend lacing and share a single spoke length for easy serviceabilityConnection program includes 5-year hub warranty, 3-year rim warranty, 1-year crash replacement, and $10 donation to trail maintenance or advocacy group of your choice Crest is the name Stan gave one of his original rim designs, and today it belongs to one of the most advanced rims made. Built of 6069 alloy and featuring a reinforced spoke bed and welded seam, the 25mm wide Crest MK4 rim is made to handle both the higher pressures of 40mm gravel tyres, as well as the lower pressures of 2.3 mountain bike tyres. The asymmetric design of the Crest MK4 rim improves spoke angle to create a stronger wheel, while still offering the easiest to inflate and most reliable airtight tubeless seal found only on Stan s patented Bead Socket Technology rims. Built for people who ride, by people who ride, the Crest MK4 wheelset relies on the proven strength of traditional J-bend spokes. As part of Stan s commitment to make easily serviceable wheels a rider can own for many years, all MK4 series wheels that are the same diameter share a single, very common, spoke length. Front and rear and both sides all use a single length, making replacing damaged spokes as easy as possible.Available with Shimano Micro Spline, HG, or SRAM XDR freehub, and 6-bolt or Centerlock brake style, with options to fit all popular axle configurations. Tubeless ready with rim tape installed. With a lightweight asymmetric tubeless rim laced to one of the most reliable and fastest-rolling hubs made, the Crest MK4 sets the bar for Gravel and XC wheelsets.What s included: Crest MK4 wheels include pre-installed tape for tubeless use and presta valves.
When you re looking for a lightweight Gravel and XC wheels built to roll fast and last forever, the aluminium Crest MK4 is your wheel. 25mm rim width optimised for Gravel and XC tyres up to 2.3 Light and durable 6069 aluminium with welded joint and reinforced spoke bedBST-Asymmetric design combines Stan s legendary easy tubeless inflation with a stronger, more balanced wheel buildNew high-end premium hubMatched wheelsets use traditional J-bend lacing and share a single spoke length for easy serviceabilityConnection program includes 5-year hub warranty, 3-year rim warranty, 1-year crash replacement, and $10 donation to trail maintenance or advocacy group of your choice Crest is the name Stan gave one of his original rim designs, and today it belongs to one of the most advanced rims made. Built of 6069 alloy and featuring a reinforced spoke bed and welded seam, the 25mm wide Crest MK4 rim is made to handle both the higher pressures of 40mm gravel tyres, as well as the lower pressures of 2.3 mountain bike tyres. The asymmetric design of the Crest MK4 rim improves spoke angle to create a stronger wheel, while still offering the easiest to inflate and most reliable airtight tubeless seal found only on Stan s patented Bead Socket Technology rims. Built for people who ride, by people who ride, the Crest MK4 wheelset relies on the proven strength of traditional J-bend spokes. As part of Stan s commitment to make easily serviceable wheels a rider can own for many years, all MK4 series wheels that are the same diameter share a single, very common, spoke length. Front and rear and both sides all use a single length, making replacing damaged spokes as easy as possible.Available with Shimano Micro Spline, HG, or SRAM XDR freehub, and 6-bolt or Centerlock brake style, with options to fit all popular axle configurations. Tubeless ready with rim tape installed. With a lightweight asymmetric tubeless rim laced to one of the most reliable and fastest-rolling hubs made, the Crest MK4 sets the bar for Gravel and XC wheelsets.What s included: Crest MK4 wheels include pre-installed tape for tubeless use and presta valves.
When you re looking for a lightweight Gravel and XC wheels built to roll fast and last forever, the aluminium Crest MK4 is your wheel. 25mm rim width optimised for Gravel and XC tyres up to 2.3 Light and durable 6069 aluminium with welded joint and reinforced spoke bedBST-Asymmetric design combines Stan s legendary easy tubeless inflation with a stronger, more balanced wheel buildNew high-end premium hubMatched wheelsets use traditional J-bend lacing and share a single spoke length for easy serviceabilityConnection program includes 5-year hub warranty, 3-year rim warranty, 1-year crash replacement, and $10 donation to trail maintenance or advocacy group of your choice Crest is the name Stan gave one of his original rim designs, and today it belongs to one of the most advanced rims made. Built of 6069 alloy and featuring a reinforced spoke bed and welded seam, the 25mm wide Crest MK4 rim is made to handle both the higher pressures of 40mm gravel tyres, as well as the lower pressures of 2.3 mountain bike tyres. The asymmetric design of the Crest MK4 rim improves spoke angle to create a stronger wheel, while still offering the easiest to inflate and most reliable airtight tubeless seal found only on Stan s patented Bead Socket Technology rims. Built for people who ride, by people who ride, the Crest MK4 wheelset relies on the proven strength of traditional J-bend spokes. As part of Stan s commitment to make easily serviceable wheels a rider can own for many years, all MK4 series wheels that are the same diameter share a single, very common, spoke length. Front and rear and both sides all use a single length, making replacing damaged spokes as easy as possible.Available with Shimano Micro Spline, HG, or SRAM XDR freehub, and 6-bolt or Centerlock brake style, with options to fit all popular axle configurations. Tubeless ready with rim tape installed. With a lightweight asymmetric tubeless rim laced to one of the most reliable and fastest-rolling hubs made, the Crest MK4 sets the bar for Gravel and XC wheelsets.What s included: Crest MK4 wheels include pre-installed tape for tubeless use and presta valves.