Lowest0.78:1
Highest3.27:1
Total range418%
Velopedia Bicycle Archive
2026 Polygon Cascade 4
Original specifications: geometry for 7 published sizes.
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At a glance
Archive #900001786- Model year
- 2026
- Category
- Mountain
- Original MSRP
- $479.00
- Sizes
- 27.5" XS, 27.5” SM, 27.5” MD, 27.5" LG, 29" SM, 29” MD, 29” LG, 29” XL
- Colors
- Charcoal, Charcoal Chrome
- Geometry
- 7 manufacturer sizes
- In this record
- 21 specifications · archived image · original MSRP · geometry
Original buildAluminum
Frameset
| Frame Construction | ALX XC Sport Frame |
|---|---|
| Frame Material | Aluminum |
| Fork | Suntour XCM 32 100mm Travel |
Drivetrain
| Shifters | Shimano Cues SL-U4010, 1X9-Rapid Fire |
|---|---|
| Rear Derailleur | Shimano Cues RD-U4000GS |
| Crankset | Prowheel C10Y-NW, 36T |
| Bottom Bracket | Square BB, 68mm |
| Cassette | Shimano Cues CS-LG300, 11-46T |
| Chain | KMC X-Glide |
| Pedals | One Piece PP Body |
Brakes
| Brakes | HYDRAULIC DISC BRAKE; Levers: HYDRAULIC DISC BRAKE; Rotors: 6-BOLTS 160mm |
|---|
Cockpit & Contact Points
| Headset | Zero Stack W/ Sealed Bearing, ZS 44/28.6 | ZS 44/30 |
|---|---|
| Handlebar | Polygon Sport W: 700mm, B: 31.8mm, R/D: 20mm |
| Stem | Polygon Sport E: 40mm, B: 31.8mm, R/D: 7 |
| Saddle | Black Steel Ø7mm |
| Seatpost | Polygon Sport 27.2 X 350mm |
Wheels & Tires
| Hubs | F: Alloy, 100mm 32H QR / R: Alloy, 135mm 32H QR |
|---|---|
| Wheels | Alloy Double Wall |
| Rims | Alloy Double Wall |
| Front Tire | 27.5" / 29"x2.25" |
| Rear Tire | 27.5" / 29"x2.25" |
No specifications match. Try a component name or clear your search.
Geometry
Frame measurements by size.
Frame diagram
Size
Measurement
Measurement
—
Select an available measurement to locate it on the frame.
All geometry measurements7 sizes · 13 measurements
| Measurement | XS (27.5") | S (27.5") | M (27.5") | L (27.5") | S (29") | M (29") | L (29") |
|---|---|---|---|---|---|---|---|
| Seat tube | 360 mm | 390 mm | 430 mm | 460 mm | 390 mm | 430 mm | 460 mm |
| Effective top tube | 538 mm | 561 mm | 582 mm | 603 mm | 566 mm | 585 mm | 604 mm |
| Head tube | 110 mm | 115 mm | 120 mm | 125 mm | 90 mm | 95 mm | 100 mm |
| Head-tube angle | 68° | 67° | 68° | 68° | 67° | 68° | 68° |
| Seat-tube angle | 75° | 74° | 74° | 74° | 75° | 75° | 74° |
| Actual seat-tube angle | 75° | 75° | 75° | 75° | 75° | 75° | 75° |
| Chainstay / rear center | 440 mm | 439 mm | 439 mm | 439 mm | 455 mm | 454 mm | 454 mm |
| Wheelbase | 1085 mm | 1108 mm | 1129 mm | 1151 mm | 1122 mm | 1142 mm | 1161 mm |
| Bottom-bracket drop | 45 mm | 45 mm | 45 mm | 45 mm | 69 mm | 69 mm | 69 mm |
| Bottom-bracket height | 310 mm | 310 mm | 310 mm | 310 mm | 304 mm | 303 mm | 303 mm |
| Reach | 380 mm | 400 mm | 420 mm | 440 mm | 400 mm | 420 mm | 440 mm |
| Stack | 596 mm | 601 mm | 606 mm | 610 mm | 620 mm | 624 mm | 629 mm |
| Standover height | 684 mm | 703 mm | 734 mm | 755 mm | 709 mm | 736 mm | 759 mm |
Dimensions as recorded.
Gearing
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
Speed unavailable: wheel or tire size is missing or unclear.
Add your rear tire size to calculate speedHow 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.
Try your current gearingChanged tires or gears? Calculate your setup.
Your changes apply to this calculation. The archived build stays unchanged.
Gearing results
| Measure | Original | Your setup |
|---|---|---|
| Lowest ratio | — | — |
| Highest ratio | — | — |
| Total range | — | — |
| Lowest-gear speed | — | — |
| Highest-gear speed | — | — |
Speeds are estimates. These calculations do not establish component compatibility or available tire clearance.
Parts & serviceability
Find replacement parts
POLYGON SPORT 27.2 x 350mm
Retailer offers
Race Face Ride XC Seatpost Black, 27.2x375mm
Replacement option
More parts (2)Fewer parts
SHIMANO CUES SL-U4010
1x9-RAPID FIRE
Shimano SL-U4010 on eBaySponsored links
ZERO STACK W/ SEALED BEARING
ZS 44/28.6 | ZS 44/30
Based on the original build. Check fit and installed parts before ordering. Affiliate links may earn Velopedia a commission. As an Amazon Associate I earn from qualifying purchases.
Parts and service referenceQuick reference before buying parts
Archived specifications for reference. Check the fitted parts before ordering.
- Front tire
- 27.5" / 29"x2.25"
- Rear tire
- 27.5" / 29"x2.25"
- Seatpost diameter
- 27.2 mm
- Bottom bracket / shell
- SQUARE BB, 68mm
Equipment inspection checks 11 checks based on 6 archived component groups Open equipment checksClose equipment checks
Checks selected from the archived equipment. Confirm what is fitted today. This is not a complete safety inspection; use the full inspection guide before test riding.
Full used-bike inspection guide →
Frame and fork
Inspect the frame and fork →Archived: Frame: ALX XC SPORT FRAME · Fork: SUNTOUR XCM 32 100MM TRAVEL
Suspension
Evaluate the suspension →Archived: Fork: SUNTOUR XCM 32 100MM TRAVEL
Drivetrain
Check drivetrain wear →Archived: Shifters: SHIMANO CUES SL-U4010, 1x9-RAPID FIRE · Rear derailleur: SHIMANO CUES RD-U4000GS · Crankset: PROWHEEL C10Y-NW, 36T · Bottom bracket: SQUARE BB, 68mm · Cassette: SHIMANO CUES CS-LG300, 11-46T · Chain: KMC X-GLIDE
Brakes
Inspect the brakes →Archived: Brakes: HYDRAULIC DISC BRAKE; Levers: HYDRAULIC DISC BRAKE; Rotors: 6-BOLTS 160mm
Wheels and tires
Check wheels and tires →Archived: Wheels: ALLOY DOUBLE WALL · Rims: ALLOY DOUBLE WALL · Hubs: F: ALLOY, 100mm 32H QR / R: ALLOY, 135mm 32H QR · Front tire: 27.5" / 29"x2.25" · Rear tire: 27.5" / 29"x2.25"
Controls and contact points
Archived: Headset: ZERO STACK W/ SEALED BEARING, ZS 44/28.6 | ZS 44/30 · Handlebar: POLYGON SPORT W: 700MM, B: 31.8MM, R/D: 20MM · Stem: POLYGON SPORT E: 40MM, B: 31.8MM, R/D: 7 · Seatpost: POLYGON SPORT 27.2 x 350mm · Saddle: BLACK STEEL ø7mm · Pedals: ONE PIECE PP BODY
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.