Polygon Siskiu D7 27.5er (Green Black)
87001212
An XC trail bike for riders who want to tackle cross-country terrain with some genuine aggression, built with modern geometry and a dropper post for real technical confidence.
Overview
The Siskiu D7 is built around an ALX XC Trail aluminium frame, with a slacker head angle, longer reach and steeper seat angle that make it unbelievably capable for riders who want to push harder on cross-country terrain. Better traction and better handling come from the modern geometry rather than any single component.
A RockShox Recon Silver RL fork with 120mm of travel handles the front end, paired with a Shimano Deore 1x11-speed drivetrain and an 11-51T cassette for wide-range gearing. A TranzX dropper post gives a perfect pedaling position at any time, letting you adjust on the fly as terrain demands.
It's built for riders who want their XC bike to handle some genuine aggression, not just smooth, groomed trails.
Why You'll Like It
Geometry built for aggressive XC riding
A slack head angle, long reach and steep seat angle give the Siskiu D7 the confidence to handle XC terrain with real aggression, not just smooth climbs.
A dropper post for genuine technical capability
The TranzX dropper gives a perfect pedaling position at any time, letting you adjust saddle height on the fly as the trail demands.
Wide-range gearing from Shimano Deore
An 11-51T cassette on an 11-speed drivetrain covers steep climbs and fast descents without a front derailleur to maintain.
A wheel fit sized to the rider
Polygon's Wheel Fit Size System pairs the frame size with the appropriate wheel size for an efficient, optimum riding experience.
Confident braking in any condition
Shimano MT200 hydraulic disc brakes deliver dependable stopping power whatever the trail throws at you.
Who Is It For?
The Siskiu D7 suits riders who want to tackle cross-country trails with real aggression — technical climbs, fast descents, and everything between, not just smooth groomed paths.
In India, that suits riders exploring trail networks around hill stations or the Western Ghats who want a bike that can keep pace when the terrain gets technical, not just on the easy sections.
It also suits a rider stepping up from a hardtail who wants genuine full-suspension capability and the added confidence a dropper post brings on technical terrain.
Good to Know
The dropper post is operated by its own lever at the bar — get familiar with the actuation point before a technical descent so it becomes second nature.
The RockShox fork's rebound and compression settings are worth dialing in to your weight and riding style for the best performance.
Technical Specifications
- Frame: ALX XC Trail frame
- Fork: RockShox Recon Silver RL, 120mm travel
- Bottom Bracket: BSA threaded, 68/73mm
- Chain: KMC X11-1
- Crank: Shimano FC-M5100, single 32T, two-piece crank, 170mm (S/M)
- Shift Levers: Shimano Deore SL-M5100, 11-speed trigger
- Cassette: Shimano Deore CS-M5100, 11-51T, 11-speed
- Front Derailleur: N/A - 1x drivetrain, no front derailleur
- Rear Derailleur: Shimano Deore RD-M5100, direct attach, 11-speed
- Grip/Tape: N/A - specific spec not confirmed in available sourcing
- Handlebar: Entity Xpert, alloy, W: 780mm, B: 31.8mm, 6° bend
- Stem: Entity Xpert, alloy, E: 40mm, B: 31.8mm
- Saddle: Entity Void saddle, Ø7mm
- Seatpost: TranzX dropper, 150mm travel, 30.9x459mm
- Front Brake: Shimano MT200 hydraulic disc brake
- Rear Brake: Shimano MT200 hydraulic disc brake
- Front Wheel: Alloy double wall
- Rear Wheel: Alloy double wall
- Front Tire: Schwalbe Nobby Nic Performance, 27.5"x2.25"
- Rear Tire: Schwalbe Nobby Nic Performance, 27.5"x2.25"
- Pedal: Alloy cage pedal w/ reflector
- Weight: N/A - not confirmed in available sourcing
Additional Information
- Country of Origin: China
- Imported By: BLITZ, Gat No. 399, Milkat, 2289, Nagar Rd, Sai Satyam Park, Wagholi, Lonikand, Pune - 412207, Maharashtra, India.
- Net Quantity: 1N
- Customer Care Address: 291, 10 Main, 5 Block, Jayanagar, Bangalore - 560041. Ph: (080)47183232, Email: support@bumsonthesaddle.com
- Commodity: Bicycles
- Warranty
Polygon Bicycles are covered by the following warranty terms ensuring freedom from defects in materials and workmanship.
Warranty Coverage Period:
1. For bike frame and non-suspension fork:
- Alloy based frame and fork: 10 years
- Carbon based frame and fork: 5 years
- Steel based frame and fork: 5 years
- Dual suspension series frame: 5 years
2. ENTITY-branded parts and electricity components equipped on E-bike : 2 (two) years since the date of purchase.
3. Paint and sticker are not covered in this warranty.
4. Warranty does not cover wear items such as: bearings, bushings, tires, tubes, rims, brake pads, brake and shifter cables-casings-hose, chains, gears, handle grips, bar tapes, and saddles which are subject to varying wear life depending on use, load, weather, road conditions etc.
- Misuse or Negligence: The warranty does not cover damages resulting from misuse, abuse, or negligent handling of the products, including but not limited to improper installation, disassembly, or modification.
- Unauthorized Repairs or Alterations: Any attempt to repair or alterations by individuals or service providers not authorized by the manufacturer will void the warranty.
- Natural Wear and Tear: Normal wear and tear, including cosmetic deterioration, scratches, dents and fading over time, are excluded from the warranty coverage.
- Accidents or External Forces: Damages caused by accidents, improper packing, collisions, unauthorized tampering or exposure to extreme external forces (e.g., impacts, falls, or severe weather conditions) are not covered under this warranty.
- Incompatible Use: The warranty does not extend to damages resulting from using the products in ways inconsistent with their intended purpose or specifications.
- Failure to Follow Instructions: Damages arising from a failure to follow the product's operating instructions, guidelines, or recommended practices as outlined in the user manual are not covered.
- Battery Exclusions: For products with rechargeable Lithium-ion batteries, the warranty may exclude battery degradation over time or failures caused by non-compliance with proper charging procedures.
- Third-Party Accessories: Damages caused by the use of third-party accessories, components, or modifications not explicitly approved by the manufacturer are not covered.
- Failure to Provide Proof of Purchase: Warranty claims may require proof of purchase, and failure to provide such documentation may result in the exclusion of the product from warranty coverage.
- Exclusion for Water Damage: Any damage relating to damage caused by water because some products are water repellant but not Water Proof
- Non-specified conditions: Not includes damaged caused to products by improper accessories or improper fittings or for use in non specified conditions
- The warranty is available only to the Original purchaser/buyer of products
- Service must be performed by Brand or an authorized reseller.
- Insurance, handling and transportation charges to Brand Distributor shall be borne by Customer.
- For some products registration is required to extend the warranty. Failure to register voids extended warranty
- The decision to replace or repair a product is influenced by the brand and various factors