Velopedia Bicycle Archive
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Compare published geometry, gearing and specifications for up to three bicycles.
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1 of 2 bicycles
At a glance
Key differences
Supported differences are shown below. Data limitations are labeled separately.
- Frame geometry
2021 Polygon XTRADA 7 has 20 mm more reach than 2026 Polygon XTRADA 7 in the selected sizes.
More reach puts the head-tube reference farther forward, not necessarily the hands.
- Frame geometry
2026 Polygon XTRADA 7 has 26 mm more stack than 2021 Polygon XTRADA 7 in the selected sizes.
More stack places the frame reference higher, not necessarily the handlebar.
- Data limitation
Only 2026 Polygon XTRADA 7 has enough published drivetrain data for gearing calculations.
- Identity & price
2021 Polygon XTRADA 7 had an original MSRP $100 lower than 2026 Polygon XTRADA 7.
Original MSRP is the published list price when new, not today’s used-bike value.
Selected-size geometry
Geometry overlay
Frames share one scale and a bottom-bracket alignment. Size labels differ by brand; schematic drawing aids are identified below.
Gearing comparison
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
Lowest0.62:1Highest3.20:1Total range520%
Estimated speed at 90 RPMLowest gearHighest gear
Rear tire: 29×2.25.
Gearing unavailable for this size.
How it works
Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.
Speeds are estimates from tire size and pedal cadence. Actual speeds vary.
Complete specification tableShows different published values and gaps where a bicycle lacks data. Different wording reflects source language, not necessarily different components. Swipe for more columns.
Specification
2026 Polygon Xtrada 7
2021 Polygon Xtrada 7
Overview
Model Year
2026
2021
Brand
Polygon
Polygon
Model
Xtrada 7
Xtrada 7
Bicycle Type
Mountain
Mountain
Original MSRP
$899.00
$799.00
Colors
Blue Black
Purple White, Grey Black
Sizes
S, M, L, XL
27.5” SM, 27.5” MD, 27.5" LG, 29” MD, 29” LG, 29” XL
Weight
—
—
Frameset
Frame Construction
ALX XC 29
ALX XC Trail
Frame Material
Aluminum
Aluminum
Fork
X-Fusion Migo RC Damper 32 120mm Travel Boost Thru Axle
SR Suntour XCR32 Air LOR 120mm (27.5" & 29") Travel
Drivetrain
Shifters
SRAM SL-70-A1 1X12-Speed Trigger
Shimano Deore SL-M6100-R, 1X12-Speed Trigger
Rear Derailleur
SRAM RD-70-A1 T-Type
Shimano Deore RD-M6100-SGS Direct Attach
Crankset
SRAM Eagle 70 T-Type 32T
Shimano Deore FC-M6120 1X12 SP
Bottom Bracket
DUB BSA 73mm
Shimano 2-Piece Crankset BSA Threaded 73mm
Cassette
SRAM CS-XS-1270-A1 12-speed 10-52T
12 Speed, 10-51T
Chain
Eagle 70 T-Type
KMC X-12
Pedals
One Piece PP Body
PP Flat Pedal W/ Reflector
Brakes
Brakes
Shimano MT200 Hydraulic Disc Brake; Levers: Shimano BL-MT200; Rotors: Shimano SM-RT10 F: 180mm R: 160mm Centerlock
Shimano MT-201 Hydraulic Disc Brakes; Levers: Shimano BL-MT201 Hydraulic Disc Brakes; Rotors: Shimano SM-RT10 160mm Center-Lock
Cockpit & Contact Points
Headset
Zero Stack W/ Caged Bearing, ZS 44/28.6 | ZS 56/40
Zero Stack (ZS) Sealed Bearing for Taper Head Tube, ZS 44/28.6 | ZS 56/40
Handlebar
POLYGON SPORT ALLOY, W: 760mm, BB: 31.8mm, R/D: 20mm, BEND: 9degree
Polygon Xpert Alloy, W: 760mm, BAR Bore: 31.8mm, Rise/Drop: 12mm, Bend: 6DEGREE
Stem
POLYGON SPORT ALLOY, EXT: 40mm, BB: 31.8mm, R/D: 7degree
Polygon Xpert Alloy, EXT: 40mm, BAR Bore: 31.8mm, Rise/Drop: 7DEGREE
Saddle
Linc Void Saddle, Steel Ø7mm
Polygon, Steel Ø 7mm
Seatpost
Dropper Post 150mm Travel, DXL: 30.9 X 429mm, Seat Clamp: 34.9mm Bolt Type
Polygon Xpert Alloy, DXL: 27.2 X 350mm, Seat Clamp: 31.8mm W/ QR
Wheels & Tires
Hubs
F: Novatec D041SB Thru Axle 15x110mm 32H Centerlock / R: Novatec D442SB Thru Axle 12x148mm 32H Centerlock
—
Wheels
Alloy Wheels
Alloy Wheels
Rims
F: Alloy Double Wall H:23mm W: 30mm 32H for Tyre 622-68 / R: Alloy Double Wall H:23mm W: 30mm 32H for Tyre 622-68
Alloy Double Wall H:23mm W: 30mm 584 32H for Tyre 584-68/622-68
Front Tire
Maxxis Rekon 29"X2.25" TLR
Performance Tire 27.5"X2.25" / 29"X2.25"
Rear Tire
Maxxis Rekon 29"X2.25" TLR
Performance Tire 27.5"X2.25" / 29"X2.25"
Geometry · choose a size for each bicycle
Geometry size
Reach
430 mm
450 mm
Stack
629 mm
603 mm
Effective top tube
609 mm
612 mm
Head-tube angle
67°
67°
Seat-tube angle
74°
75°
Actual seat-tube angle
73°
75°
Seat tube
430 mm
460 mm
Head tube
100 mm
105 mm
Chainstay / rear center
432 mm
425 mm
Wheelbase
1145 mm
1150 mm
Bottom-bracket drop
60 mm
45 mm
Bottom-bracket height
313 mm
310 mm
Standover height
756 mm
726 mm
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.