Ripper Jr
Description
Staying true to SE's claim of "BMX Innovations," the Ripper Jr is one of the stiffest, lightest and fastest junior-sized race bikes on the track. At only 16.2 pounds, this amazing bike features a lightweight 6066 aluminum frame with a bi-oval downtube, lightweight 6066 aluminum Landing Gear forks with aluminum steerer tube, Vee Speed Booster tires, a Promax Impact Mini stem and Alienation Ankle Biter rims.
Ship to Home Return Policy
Item(s) in new, unassembled, unused condition and with all original packaging, hangtags, and parts will be eligible for a refund when returned within 30 days of purchase. Return shipping fees apply.
Ship to Store Return Policy
Bicycles can be returned at time of pick-up only. After leaving the store with your assembled bicycle the sale is final. It’s up to the seller you purchased from to initiate the return. Restocking fee may apply.
Congratulations on your new SE Bike! SE bikes ship partially assembled from the factory. We always recommend that a trained mechanic build your bike, but if you follow this guide and take your time, you can build the bike yourself. Always ask an experienced mechanic about any steps you're unsure of.
KEY FEATURES
- Lightweight 6066 aluminum frame built with floval top tube, bi-oval down tube and rectangular rear stays for maximum stiffness
- Lightweight 6066 aluminum Landing Gear forks with 6061 aluminum steerer tube
- Alloy SE Mini Wing bars
- Promax Impact Mini 6061-T6 aluminum CNC stem with hidden top cap for a clean look
- Stiff and lightweight 3-pc 155mm alloy cranks
- Vee Tire Co Speed Booster 1-1/8" tires provide ultra-quick cornering and low rolling resistance
- Alienation Ankle Biter rims built with sealed cassette hubs with lightweight hollow axles with race skewer on the front
- 16.2 pounds
SPECIFICATIONS
| Suggested Rider Size | 4'3"- 4'10" (130cm-148cm) |
| Frame | Lightweight 6066 Aluminum Floval Tubing, Internally Machined Integrated Head Tube, Bi-Oval Down Tube, 68mm Wide BB, Rectangular Seat & Chainstays, 3D-Forged Dropouts |
| Fork | 6066 Alloy Landing Gear, Alloy Steerer Tube |
| Crankset | SE Racing 3-pc Alloy, 155mm, Euro-Sealed Bearing Bottom Bracket, 103mm Spindle Length, 38T Alloy Chainring |
| Pedals | Wellgo Alloy Caged, Cr-Mo Axle |
| Chain | KMC Z1 |
| Wheelset | Sealed Bearing Hollow Axle Alloy Hubs w/ Alienation Ankle Biter Double-Wall, 28H Rims, 14T Cassette, Stainless Spokes |
| Tires | Vee Tire Co Speed Booster 20" x 1-1/8" Front & Rear |
| Brakeset | Promax P-1 6061 T-6 Alloy V-Brake, Blue Pads, Slick Cable |
| Brake Levers | Promax SE-341, 2-Finger Alloy |
| Headset | Neco Sealed 1" Integrated Headset |
| Handlebar | Alloy SE Mini Wing Bar, 21.5" x 5", 11° Backsweep, 5° Upsweep |
| Stem | Promax Impact Mini 1", 6061-T6 Alloy, CNC Machined Hollowed Out Center, Lightweight External Cutouts, Hidden Top Cap, 40mm Reach |
| Grips | Junior Grips |
| Seat | SE Racing Mini w/ Integrated Alloy Post |
| Seatpost | Integrated Alloy, 22.2mm |
| Seat Clamp | Alloy, 25.4mm Inner Diameter |
| Accessories | SE Chain Tensioners |
| Weight | 16.2 lbs / 7.34 kgs |
GEOMETRY
| A | Top Tube, Actual | 18.5" | |||||||||
| B | Seat Tube, Center To Top | 8.7" | |||||||||
| C | Seat Tube Angle | 70° | |||||||||
| D | Head Tube Angle | 73° | |||||||||
| E | Chainstay Length | 13.9" | |||||||||
| F | Wheelbase | 34.1" | |||||||||
| G | Bottom Bracket Height | 11" | |||||||||
| H | Standover | 21.8" | |||||||||
| Stem | 40mm | ||||||||||
| Handlebar Width | 21.5" | ||||||||||
| Crank | 155mm | ||||||||||
| Wheel Size | 20" | ||||||||||
| Seat Post Diameter | 22.2mm |
HOW TO BUILD YOUR NEW SE BIKE!
SE bikes ship partially assembled from the factory. We always recommend that a trained mechanic build your bike, but if you follow this guide and take your time, you can build the bike yourself.
Customer Reviews
my son started the season barley able to pedal and stand up and won 13 races his first year. with only matenance to bearings. upgrading tires, pedals, brake lever. and playing with gearing and crank arm lengths. great bike to start with and a great frame design.
