Stay Strong Optimum PRK BMX Bike
Stay Strong Optimum PRK BMX Bike
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From their Expert level range of the bikes, the Stay Strong Optimum PRK BMX Bike is spec'd out as a skatepark ride but it's ultimately at home on any terrain.
It boasts popular frame geometry and parts which include tapered forks with chromoly steer tube, double wall rims, chromoly 3-piece cranks and fully sealed bearing throughout so the PRK really doesn't disappoint.
Removable tabs on the frame make fitting a gyro a breeze, 25/9t gearing gives greater clearance at the skatepark and lightweight parts like the nylon pedals & combo seat/post make this bike easier to manoeuvre and nail those tricks!
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- Free US Shipping Over $199*
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- 90-day Returns Policy
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- *select bikes and bulky items ship with a $19.95 flat fee
Product Specs
- FRAME MATERIAL: Chromoly Top tube & Down tube
- WHEEL SIZE: 20"
- TOP TUBE LENGTH: 20.75"
- CHAIN STAY LENGTH: 13.75"
- HEADTUBE ANGLE: 75°
- SEAT TUBE ANGLE: 71°
- FORKS: Chromoly Steerer Tube and Tapered Hi-Ten Legs
- BARS: 2-piece steel (9 x 29)
- STEM: Alloy Top Load
- HEADSET: Integrated
- BRAKE MOUNTS: Welded U-Brake
- BRAKES: U-Brake
- FRONT HUB: Sealed
- FRONT RIM: Double Wall
- REAR HUB: 14mm Sealed Cassette
- REAR RIM: Double Wall
- tireS:
- SPROCKET: 25t
- CRANKS: 3-piece chromoly 170mm tubular with pinch bolt
- BB: 19mm Mid
- PEDALS: Nylon/Fiberglass
- SEAT: Combo Seat/Post
- GEARING: 25/9
- WEIGHT: 24.91lbs
Product Highlights
- Full Size Bike with a Shorter Top Tube and geometry to Suit riders who are 4ft - 5ft 4" / 120cm -160cm
- A great all rounder suitable for any type of riding
- A Great All Rounder, Suitable for Any Type of Riding
- Includes Sealed Bearings
- U-brake system on welded mounts
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BMX BIKE SIZE GUIDE
BMX bikes are measured in two ways: the size of the wheel (20” is the standard BMX wheel size), and the length of the frame which is gauged by the top tube measurement. We have also simplified for you into XS, Small, Medium, etc.Here is a guide to what size you should be looking for - note that there is some overlap in sizes, as personal preference also comes into the equation!
| Rider Height (in) | Rider Height (cm ) | Wheel Size (in) | Top Tube Length (in) |
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| 2FT - 3FT | 60 - 90cm | 12" | 11.5" - 13" |
| 2'8" - 3'4" | 80 - 100 cm | 14" | 2.8" - 15" |
| 3FT - 3'8" | 90 - 110cm | 16" | 14.5" - 17" |
| 3'6" - 4'6" | 105 - 135cm | 18" | 17" - 18.5" |
| 4'6" - 5'1" (XS) |
135 - 155cm | 20" | 18" - 20" |
| 4'10" - 5'4" | 147 - 162cm | 20" | 20" - 20.25" (XS - S) |
| 5'2"- 5'8" | 157 - 173cm | 20" | 20" - 20.5" (S - M) |
| 5'6" - 6FT | 165 - 185cm | 20" | 20.25" - 21" (M - L) |
| 6FT + | 180cm + | 20" | 20.75" + (L - XL) |
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