Available in both internally and externally routed options, this seat post maintenance kit is ideal for helping you repair and maintain your Brand-X Ascend dropper seat post. Internally routed options include OE replacement seals, bushing and brass keys. (no outer cable included) Externally routed options include OE replacement seals, bushing, brass keys and nylon outer cable and barrel. Each maintenance kit is unique to each travel option and is not cross-compatible. Please ensure that you marry up the correct kit to the routing and the travel of your Brand-X Ascend post. *Please double check your own dropper post prior to purchasing the kit. The internal route Ascend posts updated in 2020 and the maintenance kit sold here is specifically for those posts. Older model maintenance kits will be added to the site in due course. Service Guide Information Click here to view the Brand-X Ascend II 105, 125 External Route Dropper Post Service Guide. Click here to view the Brand-X Ascend II 150, 170 External Route Dropper Post Service Guide. Click here to view the Brand-X Internal Dropper Post 100,125 Service Guide. Click here to view the Brand-X Internal Dropper Post 150, 170, 200 Service Guide.
Brand-X Ascend Dropper Seatpost (100, 125 & 150)Precisely engineered to bring you fast and smooth operation on the trails, the Ascend dropper post will get you into the optimum riding position in a flash. This means you'll be primed for the upcoming terrain so you can attack a climb or descent without having to stop to change your saddle position. Designed for MTB frames with dropper post internal routing, it will give a clean look to your bike too.Ergonomic Dropper SeatpostThis mountain bike dropper seatpost features an ergonomic remote lever that has been designed to run from where your front shifter normally sits. It's ideally suited for those running a 1x chainring transmission without a front derailleur.Your bike's frame must have internal dropper post routing for seamless compatibility with this dropper seatpost. To eliminate cable movement/pull, the smooth operating Brand-X Ascend 120mm & 150mm MTB Dropper Seatpost has been cable actuated at the end of the seatpost to deliver consistent performance.Remotes supplied are suitable for MTB flat bars with a 22.2mm diameter. 1x fits in place of the front shifter on left side and 2x fits perpendicular to the bar beside the grip on either side. For CX bikes that need a 31.8mm bar, this can be found here.Reasons to Buy: Incredibly fast and smooth operation. Gives you an optimum riding position. Internal cable routing for a clean look. Effortlessly remote operated.Features: Material: AL7075-T651 Diameter: 30.9mm or 31.6mm Size: 410mm or 480mm Length/Travel: 100mm, 120mm or 150mm Cable Length: 1.5m Finish: Sand Blasted and Hard Anodised Black Warranty: 2 Years Compatibility: Frames with dropper post internal cable routing only Remote Included: Yes, bar mounted shifter style remote lever Infinitely adjustable Cable operated Internal routing only Linkage mechanism eliminates any outer cable pull Zero Offset Head type One Piece head/Upper Shaft Micro Adjust clamping mechanism Rider Weight: Min: 50-55kg; Max: 120kg Weight: 550g (without cable and shifter, 31.6mm)Please Note: The "Size" information relates to the seatpost's overall length. To know which size to buy, measure your current seatpost's length and diameterMinimum Insertion Length Information: Size Minimum Insertion Length Minimum Insertion Length including the actuator (mm) 31.6mm x 357mm 100mm 90 124 30.9mm x 357mm 100mm 90 124 31.6mm x 412mm 125mm 90 124 30.9mm x 412mm 125mm 90 124 31.6mm x 459mm 150mm 90 124 30.9mm x 459mm 150mm 90 124 Service Guide Information:Click here to view the Brand-X Internal Dropper Post 100, 125 Service Guide.Click here to view the Brand-X Internal Dropper Post 150, 170, 200 Service Guide.Installation Guide Information:Click here to view the Brand-X Ascend Internal Route Post Installation Guide.Manufacturer's Reference Codes: 120mm 31.6mm 410mm: BRNDXDRP01412316120; 120mm 30.9mm 410mm: BRNDXDRP01412309120; 150mm 31.6mm 480mm: BRNDXDRP01480316150; 150mm 30.9mm 480mm: BRNDXDRP01480309150; 125mm 30.9mm 412mm: BRNDXDRP0123412309125; 150mm 30.9mm 459mm: BRNDXDRP0123459309150; 125mm 31.6mm 412mm: BRNDXDRP0123412316125; 150mm 31.6mm 459mm: BRNDXDRP0123459316150Buy Brand-X Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Brand-X Ascend Dropper Seatpost (100, 125 & 150)Precisely engineered to bring you fast and smooth operation on the trails, the Ascend dropper post will get you into the optimum riding position in a flash. This means you'll be primed for the upcoming terrain so you can attack a climb or descent without having to stop to change your saddle position. Designed for MTB frames with dropper post internal routing, it will give a clean look to your bike too.Ergonomic Dropper SeatpostThis mountain bike dropper seatpost features an ergonomic remote lever that has been designed to run from where your front shifter normally sits. It's ideally suited for those running a 1x chainring transmission without a front derailleur.Your bike's frame must have internal dropper post routing for seamless compatibility with this dropper seatpost. To eliminate cable movement/pull, the smooth operating Brand-X Ascend 120mm & 150mm MTB Dropper Seatpost has been cable actuated at the end of the seatpost to deliver consistent performance.Remotes supplied are suitable for MTB flat bars with a 22.2mm diameter. 1x fits in place of the front shifter on left side and 2x fits perpendicular to the bar beside the grip on either side. For CX bikes that need a 31.8mm bar, this can be found here.Reasons to Buy: Incredibly fast and smooth operation. Gives you an optimum riding position. Internal cable routing for a clean look. Effortlessly remote operated.Features: Material: AL7075-T651 Diameter: 30.9mm or 31.6mm Size: 410mm or 480mm Length/Travel: 100mm, 120mm or 150mm Cable Length: 1.5m Finish: Sand Blasted and Hard Anodised Black Warranty: 2 Years Compatibility: Frames with dropper post internal cable routing only Remote Included: Yes, bar mounted shifter style remote lever Infinitely adjustable Cable operated Internal routing only Linkage mechanism eliminates any outer cable pull Zero Offset Head type One Piece head/Upper Shaft Micro Adjust clamping mechanism Rider Weight: Min: 50-55kg; Max: 120kg Weight: 550g (without cable and shifter, 31.6mm)Please Note: The "Size" information relates to the seatpost's overall length. To know which size to buy, measure your current seatpost's length and diameterMinimum Insertion Length Information: Size Minimum Insertion Length Minimum Insertion Length including the actuator (mm) 31.6mm x 357mm 100mm 90 124 30.9mm x 357mm 100mm 90 124 31.6mm x 412mm 125mm 90 124 30.9mm x 412mm 125mm 90 124 31.6mm x 459mm 150mm 90 124 30.9mm x 459mm 150mm 90 124 Service Guide Information:Click here to view the Brand-X Internal Dropper Post 100, 125 Service Guide.Click here to view the Brand-X Internal Dropper Post 150, 170, 200 Service Guide.Installation Guide Information:Click here to view the Brand-X Ascend Internal Route Post Installation Guide.Manufacturer's Reference Codes: 120mm 31.6mm 410mm: BRNDXDRP01412316120; 120mm 30.9mm 410mm: BRNDXDRP01412309120; 150mm 31.6mm 480mm: BRNDXDRP01480316150; 150mm 30.9mm 480mm: BRNDXDRP01480309150; 125mm 30.9mm 412mm: BRNDXDRP0123412309125; 150mm 30.9mm 459mm: BRNDXDRP0123459309150; 125mm 31.6mm 412mm: BRNDXDRP0123412316125; 150mm 31.6mm 459mm: BRNDXDRP0123459316150Buy Brand-X Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Brand-X Ascend Dropper Seatpost (100, 125 & 150)Precisely engineered to bring you fast and smooth operation on the trails, the Ascend dropper post will get you into the optimum riding position in a flash. This means you'll be primed for the upcoming terrain so you can attack a climb or descent without having to stop to change your saddle position. Designed for MTB frames with dropper post internal routing, it will give a clean look to your bike too.Ergonomic Dropper SeatpostThis mountain bike dropper seatpost features an ergonomic remote lever that has been designed to run from where your front shifter normally sits. It's ideally suited for those running a 1x chainring transmission without a front derailleur.Your bike's frame must have internal dropper post routing for seamless compatibility with this dropper seatpost. To eliminate cable movement/pull, the smooth operating Brand-X Ascend 120mm & 150mm MTB Dropper Seatpost has been cable actuated at the end of the seatpost to deliver consistent performance.Remotes supplied are suitable for MTB flat bars with a 22.2mm diameter. 1x fits in place of the front shifter on left side and 2x fits perpendicular to the bar beside the grip on either side. For CX bikes that need a 31.8mm bar, this can be found here.Reasons to Buy: Incredibly fast and smooth operation. Gives you an optimum riding position. Internal cable routing for a clean look. Effortlessly remote operated.Features: Material: AL7075-T651 Diameter: 30.9mm or 31.6mm Size: 410mm or 480mm Length/Travel: 100mm, 120mm or 150mm Cable Length: 1.5m Finish: Sand Blasted and Hard Anodised Black Warranty: 2 Years Compatibility: Frames with dropper post internal cable routing only Remote Included: Yes, bar mounted shifter style remote lever Infinitely adjustable Cable operated Internal routing only Linkage mechanism eliminates any outer cable pull Zero Offset Head type One Piece head/Upper Shaft Micro Adjust clamping mechanism Rider Weight: Min: 50-55kg; Max: 120kg Weight: 550g (without cable and shifter, 31.6mm)Please Note: The "Size" information relates to the seatpost's overall length. To know which size to buy, measure your current seatpost's length and diameterMinimum Insertion Length Information: Size Minimum Insertion Length Minimum Insertion Length including the actuator (mm) 31.6mm x 357mm 100mm 90 124 30.9mm x 357mm 100mm 90 124 31.6mm x 412mm 125mm 90 124 30.9mm x 412mm 125mm 90 124 31.6mm x 459mm 150mm 90 124 30.9mm x 459mm 150mm 90 124 Service Guide Information:Click here to view the Brand-X Internal Dropper Post 100, 125 Service Guide.Click here to view the Brand-X Internal Dropper Post 150, 170, 200 Service Guide.Installation Guide Information:Click here to view the Brand-X Ascend Internal Route Post Installation Guide.Manufacturer's Reference Codes: 120mm 31.6mm 410mm: BRNDXDRP01412316120; 120mm 30.9mm 410mm: BRNDXDRP01412309120; 150mm 31.6mm 480mm: BRNDXDRP01480316150; 150mm 30.9mm 480mm: BRNDXDRP01480309150; 125mm 30.9mm 412mm: BRNDXDRP0123412309125; 150mm 30.9mm 459mm: BRNDXDRP0123459309150; 125mm 31.6mm 412mm: BRNDXDRP0123412316125; 150mm 31.6mm 459mm: BRNDXDRP0123459316150Buy Brand-X Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Brand-X Ascend Lever Kit (1x Gears)Specifically designed for use with a Brand-X mechanical dropper seatpost, this gear shifter-shaped dropper lever has been ergonomically shaped for easy operation. Designed to replace a front gear shifter on your bars, it’s perfect for those running a 1x drivetrain (ie. without a front shifter or front derailleur.)Reasons to Buy: Ergonomically shaped for easy operation. Perfect for those running a 1x drivetrain.Features: Material: AL7075-T651 Cable Length: 1.5m Finish: Sand blasted and hard anodised black Bar mounted shifter style remote lever Cable-operated Requires dropper post internal cable routing Also suitable for use on other brands of cable operated droppers 2 Year WarrantyBuy Brand-X Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Brand-X Ascend Paddle Lever Kit (2x/3x Gears)Introducing the Ascend Paddle Lever Kit from Brand-X. The paddle style remote lever is ergonomically designed to sit next to your front shifter, allowing you to run your Ascend dropper seatpost when using a front derailleur and shifter.Features:Material: AL7075-T651Bar mounted paddle style remote leverCable-operatedCable Length: 1.5mFinish: Sandblasted and hard anodised black2 Year WarrantyBuy Brand-X Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Brand-X Ascend XL Dropper Seatpost (170 & 200mm)Brand-X's Ascend Dropper Seatpost was so good they decided to super-size it: the Ascend XL Dropper Seatpost offers longer travel for the long-legged rider or for those who prefer a greater scope of adjustment. Operated easily via a paddle style remote, this aluminium dropper seatpost lets the rider customise their saddle height for the trail ahead. The Ascend Dropper Seatpost set the benchmark for reliability and performance at an excellent price point, a proud tradition that the Ascend XL Dropper Seatpost will carry on.Ergonomic Dropper SeatpostThis Brand-X Ascend Dropper Seatpost features an ergonomic remote lever that has been designed to run from where your front shifter normally sits. Ideally suited for those running a 1x chainring transmission without a front derailleur. However, a paddle style shifter is available aftermarket for those who want to use the Ascend XL Dropper Seatpost with a front derailleur and shifter.Consistent PerformanceThe seatpost is cable actuated at the bottom of the post via a linkage mechanism which eliminates cable pull/movement, to ensure consistent performance time and time again.Features: Material: T651-7075 Aluminium Finish: Sand Blasted and Hard Anodised Black Bar mounted paddle style remote lever and cable operated internal routing Linkage mechanism eliminates any outer cable pull Zero offset, one-piece head/upper shaft with micro adjust clamping mechanism Only compatible with internally routed bikes Diameter: 30.9mm or 31.6mm Travel: 170mm or 200mm Length: 170mm: 499mm; 200mm: 559mm Cable Length: 1.5m 2 Year Warranty Rider Weight: Min: 50-55kg; Max: 120kg Weight: 170mm: 638g; 200mm: 685gMinimum Insertion Length Information: Size Minimum Insertion Length Minimum Insertion Length including the actuator (mm) 31.6mm x 499mm 170mm 120 154 30.9mm x 499mm 170mm 120 154 31.6mm x 559mm 200mm 150 184 30.9mm x 559mm 200mm 150 184 Service Guide Information:Click here to view the Brand-X Internal Dropper Post 150, 170, 200 Service Guide.Installation Guide Information:Click here to view the Brand-X Ascend Internal Route Post Installation Guide.Buy Brand-X Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Brand-X Ascend XL Dropper Seatpost (170 & 200mm)Brand-X's Ascend Dropper Seatpost was so good they decided to super-size it: the Ascend XL Dropper Seatpost offers longer travel for the long-legged rider or for those who prefer a greater scope of adjustment. Operated easily via a paddle style remote, this aluminium dropper seatpost lets the rider customise their saddle height for the trail ahead. The Ascend Dropper Seatpost set the benchmark for reliability and performance at an excellent price point, a proud tradition that the Ascend XL Dropper Seatpost will carry on.Ergonomic Dropper SeatpostThis Brand-X Ascend Dropper Seatpost features an ergonomic remote lever that has been designed to run from where your front shifter normally sits. Ideally suited for those running a 1x chainring transmission without a front derailleur. However, a paddle style shifter is available aftermarket for those who want to use the Ascend XL Dropper Seatpost with a front derailleur and shifter.Consistent PerformanceThe seatpost is cable actuated at the bottom of the post via a linkage mechanism which eliminates cable pull/movement, to ensure consistent performance time and time again.Features: Material: T651-7075 Aluminium Finish: Sand Blasted and Hard Anodised Black Bar mounted paddle style remote lever and cable operated internal routing Linkage mechanism eliminates any outer cable pull Zero offset, one-piece head/upper shaft with micro adjust clamping mechanism Only compatible with internally routed bikes Diameter: 30.9mm or 31.6mm Travel: 170mm or 200mm Length: 170mm: 499mm; 200mm: 559mm Cable Length: 1.5m 2 Year Warranty Rider Weight: Min: 50-55kg; Max: 120kg Weight: 170mm: 638g; 200mm: 685gMinimum Insertion Length Information: Size Minimum Insertion Length Minimum Insertion Length including the actuator (mm) 31.6mm x 499mm 170mm 120 154 30.9mm x 499mm 170mm 120 154 31.6mm x 559mm 200mm 150 184 30.9mm x 559mm 200mm 150 184 Service Guide Information:Click here to view the Brand-X Internal Dropper Post 150, 170, 200 Service Guide.Installation Guide Information:Click here to view the Brand-X Ascend Internal Route Post Installation Guide.Buy Brand-X Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Brand-X Ascend CX Dropper Seatpost (85 & 105mm)As it has been so popular with mountain bikers, Brand-X has now made its Ascend dropper seatpost available for drop bar enthusiasts too. This particular model adopts the smaller 27.2mm diameter as used on road, gravel and CX bikes, plus has a shorter travel range to suit the type of riding that these bikes are for. As long as your frame has dropper post internal cable routing, you can now easily tweak your riding position on the move for increased comfort and pedalling efficiency.Smooth and Reliable Dropper SeatpostOperated easily via a paddle style remote on either side of your cockpit, the aluminium CX Dropper Seatpost is easily installed on bikes with internal cable routing. Cable actuated at the bottom of the dropper post via a linkage mechanism, the Brand-X dropper post eliminates cable pull/movement for a smooth and reliable performance. The Ascend Dropper Seatpost set the benchmark for reliability and performance at an excellent price point, a proud tradition that the Ascend CX Dropper Seatpost will carry on.Reasons to Buy: Designed for drop bar enthusiasts. 27.2mm diameter for road, gravel and CX use. Shorter travel range. Internal cable routing for a clean look.Features: Material: T651-7075 Aluminium Bar mounted paddle style remote lever and cable operated internal routing (included) Linkage mechanism eliminates any outer cable pull Zero offset, one-piece head/upper shaft with micro adjust clamping mechanism Only compatible with internally routed bikes Seatpost Diameter: 27.2mm Overall Length: 85mm: 350mm; 105mm: 400mm Cable Length: 1.5m Lever Diameter: To fit 31.8mm handlebars Finish: Sand blasted and hard anodised Warranty: 2 years Rider Weight: Min: 50-55kg; Max: 120kg Weight: 530g (85mm travel, w/o cable and paddle)Minimum Insertion Length Information: Size Minimum Insertion Length Minimum Insertion Length including the actuator (mm) 27.2mm x 350mm 85mm 100 134 27.2mm x 400mm 105mm 120 154 Manufacturer's Reference Codes: 400mm/105mm/27.2mm: BRNDXDRPCX272400105; 350mm/85mm/27.2mm: BRNDXDRPCX27235085Buy Brand-X Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Brand-X Ascend II Dropper Seatpost (105,125,150)Available in 105mm, 125m and 150mm travel options, the Ascend II mountain bike dropper enables you to quickly and reliably adjust your saddle height without interrupting your pedalling flow. Offering smooth and consistent operation, this budget-friendly component will put you in the perfect riding position for tackling every section of the trail.Externally Routed Dropper SeatpostBuilding on the success of the Ascend Dropper Seatpost, this aluminium dropper post is available for those who have a rig without internal cable routing: Brand-X is bringing affordable and reliable dropper posts to the people! With infinitely smooth adjustments and an ergonomic lever that can sit on the left or right of your cockpit, the Brand-X Ascend II Dropper Seatpost is the upgrade that your bike needs. To avoid cable movement/pull, this dropper seatpost's cable is actuated from the mid-cap and delivers consistent performance.Please Note: The 27.2mm option comes with the 2/3x Paddle Lever. The 27.2mm size also has a 2-piece saddle clamp so the saddle will sit slightly higher than on the 31.6mm and 30.9mm options.Features: Material: T6-6061 Aluminium Compatibility: Frames that do not have internal dropper post cable routing Bar mounted remote lever and cable operated external routing (included) Linkage mechanism eliminates any outer cable pull Zero offset, one-piece head/upper shaft with micro adjust clamping mechanism Length: 390mm, 400mm, or 449mm Travel: 105mm, 125mm or 150mm Cable Length: 1.5m Finish: Sand blasted and hard anodised Warranty: 2 years Not suitable for internal routing use Lever Clamp Diameter: 22.2mm Rider Weight: Min: 50-55kg; Max: 120kg Weight: 605g (30.9mm) without cable and paddle shifter (90g)Minimum Insertion Length Information: Size Minimum Insertion Length Minimum Insertion Length including the actuator (mm) 27.2mm x 390mm 105mm 90 128 31.6mm x 400mm 125mm 90 128 30.9mm x 400mm 125mm 90 128 31.6mm x 449mm 150mm 90 128 30.9mm x 449mm 150mm 90 128 Service Guide Information:Click here to view the Brand-X Ascend II 105, 125 External Route Dropper Post Service Guide.Click here to view the Brand-X Ascend II 150, 170 External Route Dropper Post Service Guide.Manufacturer Reference Codes: 125mm/31.6mm/400mm: BRNDXDRPA02316400125; 125mm/30.9mm/400mm: BRNDXDRPA02309400125; 105mm/27.2mm/390mm: BRNDXDRPA02272390105; 150mm/31.6mm/449mm: BRNDXDRPA02316449150; 150mm/30.9mm/449mm: BRNDXDRPA02309449150Buy Brand-X Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Brand-X Ascend II Dropper Seatpost (105,125,150)Available in 105mm, 125m and 150mm travel options, the Ascend II mountain bike dropper enables you to quickly and reliably adjust your saddle height without interrupting your pedalling flow. Offering smooth and consistent operation, this budget-friendly component will put you in the perfect riding position for tackling every section of the trail.Externally Routed Dropper SeatpostBuilding on the success of the Ascend Dropper Seatpost, this aluminium dropper post is available for those who have a rig without internal cable routing: Brand-X is bringing affordable and reliable dropper posts to the people! With infinitely smooth adjustments and an ergonomic lever that can sit on the left or right of your cockpit, the Brand-X Ascend II Dropper Seatpost is the upgrade that your bike needs. To avoid cable movement/pull, this dropper seatpost's cable is actuated from the mid-cap and delivers consistent performance.Please Note: The 27.2mm option comes with the 2/3x Paddle Lever. The 27.2mm size also has a 2-piece saddle clamp so the saddle will sit slightly higher than on the 31.6mm and 30.9mm options.Features: Material: T6-6061 Aluminium Compatibility: Frames that do not have internal dropper post cable routing Bar mounted remote lever and cable operated external routing (included) Linkage mechanism eliminates any outer cable pull Zero offset, one-piece head/upper shaft with micro adjust clamping mechanism Length: 390mm, 400mm, or 449mm Travel: 105mm, 125mm or 150mm Cable Length: 1.5m Finish: Sand blasted and hard anodised Warranty: 2 years Not suitable for internal routing use Lever Clamp Diameter: 22.2mm Rider Weight: Min: 50-55kg; Max: 120kg Weight: 605g (30.9mm) without cable and paddle shifter (90g)Minimum Insertion Length Information: Size Minimum Insertion Length Minimum Insertion Length including the actuator (mm) 27.2mm x 390mm 105mm 90 128 31.6mm x 400mm 125mm 90 128 30.9mm x 400mm 125mm 90 128 31.6mm x 449mm 150mm 90 128 30.9mm x 449mm 150mm 90 128 Service Guide Information:Click here to view the Brand-X Ascend II 105, 125 External Route Dropper Post Service Guide.Click here to view the Brand-X Ascend II 150, 170 External Route Dropper Post Service Guide.Manufacturer Reference Codes: 125mm/31.6mm/400mm: BRNDXDRPA02316400125; 125mm/30.9mm/400mm: BRNDXDRPA02309400125; 105mm/27.2mm/390mm: BRNDXDRPA02272390105; 150mm/31.6mm/449mm: BRNDXDRPA02316449150; 150mm/30.9mm/449mm: BRNDXDRPA02309449150Buy Brand-X Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Brand-X Ascend II Dropper Seatpost (105,125,150)Available in 105mm, 125m and 150mm travel options, the Ascend II mountain bike dropper enables you to quickly and reliably adjust your saddle height without interrupting your pedalling flow. Offering smooth and consistent operation, this budget-friendly component will put you in the perfect riding position for tackling every section of the trail.Externally Routed Dropper SeatpostBuilding on the success of the Ascend Dropper Seatpost, this aluminium dropper post is available for those who have a rig without internal cable routing: Brand-X is bringing affordable and reliable dropper posts to the people! With infinitely smooth adjustments and an ergonomic lever that can sit on the left or right of your cockpit, the Brand-X Ascend II Dropper Seatpost is the upgrade that your bike needs. To avoid cable movement/pull, this dropper seatpost's cable is actuated from the mid-cap and delivers consistent performance.Please Note: The 27.2mm option comes with the 2/3x Paddle Lever. The 27.2mm size also has a 2-piece saddle clamp so the saddle will sit slightly higher than on the 31.6mm and 30.9mm options.Features: Material: T6-6061 Aluminium Compatibility: Frames that do not have internal dropper post cable routing Bar mounted remote lever and cable operated external routing (included) Linkage mechanism eliminates any outer cable pull Zero offset, one-piece head/upper shaft with micro adjust clamping mechanism Length: 390mm, 400mm, or 449mm Travel: 105mm, 125mm or 150mm Cable Length: 1.5m Finish: Sand blasted and hard anodised Warranty: 2 years Not suitable for internal routing use Lever Clamp Diameter: 22.2mm Rider Weight: Min: 50-55kg; Max: 120kg Weight: 605g (30.9mm) without cable and paddle shifter (90g)Minimum Insertion Length Information: Size Minimum Insertion Length Minimum Insertion Length including the actuator (mm) 27.2mm x 390mm 105mm 90 128 31.6mm x 400mm 125mm 90 128 30.9mm x 400mm 125mm 90 128 31.6mm x 449mm 150mm 90 128 30.9mm x 449mm 150mm 90 128 Service Guide Information:Click here to view the Brand-X Ascend II 105, 125 External Route Dropper Post Service Guide.Click here to view the Brand-X Ascend II 150, 170 External Route Dropper Post Service Guide.Manufacturer Reference Codes: 125mm/31.6mm/400mm: BRNDXDRPA02316400125; 125mm/30.9mm/400mm: BRNDXDRPA02309400125; 105mm/27.2mm/390mm: BRNDXDRPA02272390105; 150mm/31.6mm/449mm: BRNDXDRPA02316449150; 150mm/30.9mm/449mm: BRNDXDRPA02309449150Buy Brand-X Components from Chain Reaction Cycles, the World's Largest Online Bike Store.