Diamondback Octane Jr Girls’ Mountain Bike (20-Inch Wheels)
Diamondback Octane Jr Girls’ Mountain Bike (20-Inch Wheels)
The Octane 20 is the perfect starter mountain bike for the little one who wants to take to the trails with mom and dad, or just get around the neighborhood and the park with ease.It’s your choice: you can get your kids off to a healthy start by buying them a trouble-free quality bike that gives them their first taste of freedom, or you can buy one with a price closer to free and make riding a source of frustration. Enter the Diamondback Octane Jr., a high-quality girl’s mountain bike that’s a TV’s worst nightmare. The Octane Jr. is equipped with a number of quality replaceable parts, such as a heat-treated aluminum frame with a replaceable derailleur hanger; a 30mm suspension fork; a six-speed Shimano shifter, derailleur, and freewheel; aluminum rims; and alloy linear pull brakes. The features combine to make riding bicycles the liberating and healthy activity it should be.
Specifications:
- Size: Jr. mountain 20-inch (wheels) girl’s frame
- Frame: DB 6061 heat-treated aluminum with replaceable derailleur hanger
- Fork: Trail XC 30mm travel
- Cranks: 140mm 1-piece, 40t
- Bottom bracket: Looseball
- Rear derailleur: Shimano TZ-50
- Shifter: Shimano Revo 6-speed twist
- Brake levers: Alloy linear with reach adjustment
- Brakes: Alloy linear
- Gear: Shimano MF-HG37 6-speed freewheel (14-28t)
- Rims: 36H R-1000 alloy
- Tires: Jr. ATB Knobby 20 x 2.0
- Pedals: Resin
- Handlebar: Steel Jr. Riser, 20.5 inches wide by 1-inch rise
- Stem: Alloy quill
- Seatpost: Steel pillar, 25.4mm
- Seat: Jr. ATB 2-panel
- Headset: 1-inch threaded
- Colors: Pink
- Chain: 1-inch threaded
- Hubset: 36H nutted (front and rear)
- Coaster spokes: 14g
- Grips: DB Kraton
- Extras: Clear coat, chainstay protector, rear derailleur guard
Manufacturer’s Warranty
Lifetime on the frame, 5 years on the fork, 1 year on components, 1 year on labor for the frame, 30 days on labor for parts
User Ratings and Reviews
5 Stars Light and nice
My daughter and I loved the bike. She doesn’t ride well yet, so I purchased training wheels, but they simply will not stay on. Thus, I recommend that you purchase a bike with training wheels before you purchase this one. I am teaching her to ride, and since she’s worried about her knees, I predict it will take 7 months or so! 
That said, the bike is light enough for her to drop without dropping it on herself when she feels herself falling over. The brakes work well, and overall, I think it’s a good purchase.
4 Stars Good Deal
This bike was a Christmas present for my 7 year old. She loves it! Good quality, as nice looking as the picture and fairly easy to put together. The only down side is shifting the gears is a little tough for her. It’s a pretty stiff set-up. Overall, we are pleased and so is she!
Julia, Ca
5 Stars perfect little girl bike
This is a very nice bike, packed nicely, was put together easily, I wouldn’t have known how to adjust the brakes, no directions, but my hubby did :). It’s great quality, but no kickstand so I’ll have to buy one. My 8 year old loves the color its a pearly-pink, she is 4′5″ with a 24″ inseam and this bike is great for her, the 24″ bike would have overwhelmed her because biking has been a challenge to her and she just learned to ride with no training wheels, but the seat is raised about what it shows in the picture(more then halfway up the bar) it can still be raised up a bit but you may opt for the Octane 24″ if your child is close to this size or any bigger(go by inseam). I’m hoping she gets a couple years out of it, but I plan to pass it down to my 4 year old when she’s about 6, so its a great buy for me in the longrun anyway. Its a dream compared to the cheap toy store bike she learned on, the old bike was heavy and awkward and by the time she was comfortable handling it she was way too big for it, I wish I had bought her a quality bike to begin with and maybe she would have learned easier, I’m very pleased I bought this bike enstead of going back to the toystore for a cheap one. The alluminum frame makes it lightweight and easy to handle.
5 Stars Wonderful Bike!!
We got this bike for our 8yr old daughter for Christmas. She had an old bike that was getting too small for her yet she still had trouble riding it without the training wheels so I wanted to get her something nicer and not from a toy store like the old one hoping it would make a difference for her. The Difference was amazing, she hopped on this bigger bike on Christmas morning and took off like there was nothing to it. The bike is very light which I think made a big difference. The bike is very well made and you can tell just by looking at it how nice it is. The brakes are very nice (even Grandpa was impressed)and the shifter is very solid. It does not come with a kickstand but that was an easy and inexpensive fix, we got a black one that looked like it came with it. My daughter loves how beautiful it is and how easy it is to ride. I will definitely buy a diamond back again when my younger daughter is ready for her first bike.
Filed under: Mountain Bike Reviews