Polygon SISKIU D7 LG 29" XC Trail Mountain Bicycle 2025

Smooth-Rolling Full-Suspension Performance

Shimano Cues
Disc brakes

₹149,990 ₹166,990

You save ₹17,000 (10%)

Color: Blue White

Polygon SISKIU D7 LG 29" XC Trail MTB Bicycle 2025 | The Bike Affair

M L XL

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Recommended rider height for Polygon mountain bikes (Collosus, Siskiu, Syncline), as published in Polygon's per-model geometry tables.

	S	M	L	XL
Height (In cms.)	155-165	165-175	175-185	185-195

Source: Polygon per-model geometry tables (polygonbikes.com). Polygon also publishes a separate generic sizing guide with wider, overlapping bands; the figures above are the ones Polygon lists against these specific models.

The Polygon SISKIU D7 LG 29" XC Trail MTB Bicycle 2025 is a capable full-suspension bike for cross-country routes and technical trails. Its modern geometry supports efficient climbing and stable descending.

Smooth-Rolling Alloy Platform: The hydroformed ALX XC Trail frame combines durability with 120 mm of rear travel for added comfort and control. Its 29-inch wheels roll efficiently over roots, rocks and uneven terrain.

Trail-Tuned RockShox Fork: A RockShox Recon Silver RL air fork provides 120 mm of travel with lockout and rebound adjustment. It absorbs rough surfaces while allowing suspension tuning for different trails.

Wide-Range Cues Control: The Shimano Cues 1x11-speed drivetrain combines a 32T crankset with an 11-50T cassette for steep climbs and faster sections. Hydraulic disc brakes and a TranzX dropper post improve control.

The Polygon SISKIU D7 LG 29" XC Trail MTB Bicycle 2025 delivers capable suspension, confident stability and efficient rolling performance for progressive trail riders.

Product details

Specifications

Frame: ALX XC Trail Frame
Fork: RockShox Recon Silver RL 120mm Travel
Rear Shock: RockShox Deluxe Select Plus, E2E: 190x45mm
Brake Calipers: Shimano Hydraulic Disc
Rotors: Front	180mm / Rear: 160mm, Centre Lock
Shifters: Shimano Cues 1x11-Speed Trigger
Crankset: 170mm, 32T
Cassette: Shimano 11-50T
Rear Derailleur: Shimano Cues 11-Speed
Bottom Bracket: Threaded, 68/73mm
Chain: KMC
Pedals: Alloy Cage Pedals W/ Reflectors

Saddle: Linc Void
Seatpost: TranzX Dropper 150mm
Handlebar & Stem: Polygon Xpert Alloy
Headset: Threadless Zero Stack, ZS 44/28.6 \| ZS 56/40
Wheelset: Alloy Double Wall
Wheel Size: 29"
Tyres: Performance Tyres 29x2.25"
Rims: Alloy Double Wall 622-30, 32H, for 622-54/76 Tyres
Front Hub: Shimano HB-MT400, 15x100mm Thru Axle, 32H, Centre Lock
Rear Hub: Shimano FH-MT400, 12x148mm Thru Axle, 32H, Centre Lock
Color	Blue White
Size	M, L, XL

Features

Balanced Trail Suspension: 120 mm front and rear travel absorbs impacts across rough XC trails.
Wide-Range Gearing: Shimano Cues 1x11 drivetrain supports steep climbs and fast trail sections.
Adjustable Ride Position: TranzX dropper post improves control during technical descents.
Powerful Trail Braking: Shimano hydraulic disc brakes provide reliable stopping on varied terrain.
Fast-Rolling Platform: 29" wheels maintain momentum and roll smoothly over trail obstacles.
Stable Trail Grip: Wide 2.25" tyres improve traction across loose and uneven surfaces.

Technologies

ALX Alloy Frame: Lightweight hydroformed alloy construction is manufactured in-house for strength, durability and responsive trail handling.
RockShox Suspension System: Recon Silver RL fork and Deluxe Select Plus rear shock provide controlled 120 mm travel over rough terrain.
TranzX Dropper Post: Handlebar-operated height adjustment lowers the saddle for improved movement and confidence on descents.

Fit and sizing

See the size chart · Between sizes? Ask TBA Guide with your measurements.

Warranty and support

Covered by the manufacturer's warranty. Warranty claims go through us and we deal with the brand for you.

Questions after delivery? Ask TBA Guide or WhatsApp us.

Shipping and returns

We ship across India. Shipping is free on orders above ₹2,000 and ₹99 below that. Cash on delivery is available on orders up to ₹20,000, with a COD charge that depends on the order value. For a delivery estimate, enter your pincode in the box above the add-to-cart button: it shows the courier's own estimate for your address, not a promised date. If a parcel is held up we chase the courier until it is delivered. Full shipping policy

Returns can be started within 7 days of delivery on unused items in their original condition with all tags and packaging. Apparel, helmets, gloves and similar items are returnable; wetsuits and products discounted by more than 5% are not. Compatibility questions are not grounds for a return unless our listing was wrong, so ask us before you order if you are unsure. Return shipping is arranged by you; on an accepted return you can choose an exchange, store credit or a refund after shipping and transaction charges. Orders can be cancelled only until they are processed. Full return and refund policy