S&M Challenger Frame Kit
S&M Challenger Frame Kit
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Originally released in 1993, the Challenger frame and fork kit was conceived in a golden era of BMX when racing and trail riding could be done on the same bike. It quickly became one of the best-selling frames ever… and now, 30-years later, it's back!
For this very limited-edition reproduction kit, S&M have gone with a 21” top tube, upgraded to a CNC-machined head tube and laser-cut drops. A 1” threaded headset and 1” seatpost clamp are included with each kit.
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- Complete Tracking On All Orders
- 90 Day Returns Policy
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- *Excludes bulky items
Product Specs
- MATERIAL: Chromoly
- HEAD TUBE ANGLE: 74.5°
- SEAT TUBE ANGLE: 71°
- CHAIN STAY LENGTH: 14.25"
- BB HEIGHT: 11.6"
- WHEEL SIZE: 20"
- STANDOVER HEIGHT: 9.25"
- DROPOUT SIZE: 10mm
- HEADSET TYPE: Integrated
- BB TYPE: Mid
- BRAKE MOUNTS: Brakeless
- GYRO TABS: None
- WEIGHT: 6lbs (2.7kg)
Product Highlights
- Neutral geometry for responsiveness and stability
- Best suited for Trails and riding Fast
- High-quality Chromoly construction
- Made in the USA
- Strong and durable dropout
UNDERSTANDING FRAME GEOMETRY
BMX frame geometry can look daunting, but thanks to our handy guide below you will have it figured out in no time. Remember, we're all BMXers here so if you have any questions just ask.
Keep reading to find your perfect frame, or click below to watch the buyers guide video.
FRAME SIZE CHART
Frame sizing is very much a personal preference: some riders like them longer, others shorter. Here's a rough guide - if you have any questions remember we are here to help!3ft - 3ft 8" - best suited to a 16" BMX bike
3ft 8" - 4ft - best suited an 18" BMX bike
4ft - 5ft - 18" to 20" top tube
5ft - 5ft 4" - 20" to 20.25" top tube
5ft 4" - 5ft 8" - 20.25" to 21" top tube
5ft 8" - 6ft - 21" to 21.25" top tube
6ft plus - 21" top tube or longer
Rider Height (in) | Rider Height (cm) | Top Tube Length |
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5' | 152 | 20" |
5'3" | 160 | 20.5" |
5'6" | 167 | 20.75" |
5'9" | 175 | 21" |
6' | 182 | 21.25" |
6'6" | 200 | 21.5" |
FRAME GEOMETRY
Frame geometry can take a bit of understanding - but here at SourceBMX we are here to help! The first thing to understand is that BMX frame sizing is best measured by the length of the top tube - shown here as TT. Keep reading on to understand how the angles change how your frame will feel!