The Fit Series One BMX was our first frame back in 2000! It was a straight-forward, clean BMX frame that helped redefine what was necessary and what wasn’t. Twenty-one years later, The Series One is a high-quality com - plete bike that rides well and is priced to sell, with everything riders need and nothing they don’t. With three TopTube sizes and proportional components, there’s an S1 for anyone looking for a 20” BMX bike. Responsive but stable geometry, traditional fork off-set, and comfortable 2-pc bars, these bikes work for any style of riding. One glance at these in person will have you wondering if you’ve hung the wrong price tag on them.
Key features:
- 75” TT (LG) Cro-Mo Top & Down Tubes
- Cro-Mo Steerer Tube forks
- U-brake with more tyre clearance and softer springs
- Tubular Cro-Mo 170mm cranks
- Sizes: L (20.75" TT)
- Colours: Gloss Clear, Trans Gold, Aitken Tan
- The Fit Series One Large is available with 0% APR Finance
All Tredz bikes are:
- Fully built & ready to ride
- Fully checked & tested by Cytech qualified mechanics
- Available with 0% APR finance on any basket over £99
- UK price match guarantee
- 365 day no hassle returns
- Free delivery in the UK Mainland on a date that suits you
In the box with every Tredz bike is:
- Free Tredz 9 key trail tool
- Free Tredz pedal spanner
- Free basic pedals
- Tredz drawstring kit bag
- 16 point quality control check sheet
- Basic bike setup instructions
- Free Cycle Plan insurance voucher
Occasionally, without notice, manufacturers change product design and/or specifications.
| Frame | 20.75” TT (LG) Cro-Mo Top & Down Tubes. |
| Fork | 33mm Offset Cro-Mo Steerer Tube |
| Headset | A-Headset |
| Stem | FIT Top Load |
| Bars | 2-Piece 9”x 29”. |
| Front Brake | New U-Brake w/more tire clearance and softer pull springs. |
| Rear Brake | New U-Brake w/more tire clearance and softer pull springs. |
| Speed | 1 |
| Rims | FIT S1W |
| Front Hub | Unsealed Hub |
| Rear Hub | Sealed 9T Cassette |
| Front Tyre | FIT OEM 2.4 |
| Rear Tyre | FIT OEM 2.4 |
| Saddle | New More Padded Integrated Combo |
| Chainset | Tubular Cro-Mo 170mm |
| Bottom Bracket | Sealed Mid |
| Cassette | FIT Key 25T |
| Pedals | FIT Mack-PC |
BMX Size guide
Kids BMX Size Chart
|
Rider Height |
BMX |
||
|
Feet & Inches |
Centimetres |
Approximate Age |
Wheel Size |
|
3'7" - 4'0" |
110cm - 122cm |
5 - 7 years |
16" |
|
4'0" - 4'10" |
122cm - 147cm |
7 - 11 years |
18" |
|
4'10" - 6'4" |
147cm - 193cm |
11+ years |
20" |
Adult BMX Size chart
20” BMX bikes can be sized on top tube length. A taller rider will suit a longer top tube. Though some riders might wish to experiment with top tube length to suit different riding styles, below is a suggestion.
|
Rider Height |
Top tube length |
|
5’0” – 5’5” (152 – 165cm) |
20” – 20.5” |
|
5’5” – 5’10” (165 – 178cm) |
20.75” |
|
5’10 – 6’0”+ (178 – 183cm+) |
21”+ |
Cruiser BMX Sizing
BMX Bikes with wheels larger than 24” are known as cruisers and will suit riders taller than 5’0” 152cm.
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