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Diamondback Girls' Tess 20 Jr Mountain Bike (20-Inch Wheels)

3.3 out of 5 stars 23 customer reviews

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  • 20-inch girls' mountain bike with heat-treated aluminum frame
  • Front suspension fork with 40mm of travel; 6-speed drivetrain
  • Shimano Revo twist shifters; steel junior riser handlebar
  • Linear pull brakes with comfortable hand-brake levers
  • Alloy wheels and wide knobby tires; resin platform pedals
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Technical Details


Product Description

Product Description

Diamondback Girls' Tess Jr Mountain Bike, Purple - 20"

Amazon.com

With a geometry designed to take big hits but with features conducive to a beginner, the Tess 20 Jr. Mountain Bike is Diamondback's introductory mountain bike for girls. Tess features a front suspension fork, an integrated chainguard, and durable Shimano twist shifters and derailleurs for trouble-free, single-handed gear changes that familiarize the beginning rider with the process of shifting. The six-speed twist shifter introduces the young rider to shifting without causing too much confusion, while the linear pull brakes help her get used to braking with her hands instead of her feet. The steel frame is built for both speed and riding the trails, with wide, knobby tires for traction on rocks, dirt, and scree.

Features:

  • Steel frame is built for speed on dirt trails but with features designed for a beginner
  • Front suspension fork features 40mm of shockproof travel to ensure a smooth ride
  • Drivetrain provides 6 speeds; integrated chainguard
  • Comfortable SunRace twist shifters allow the hands to remain properly positioned while changing gears
  • Linear-pull brakes offer reliable stopping power and comfortable hand-brake levers
  • Wide, knobby tires provide great traction on varied surfaces

Specifications:

  • Best Use: Mountain biking
  • Bike Style: Mountain bike
  • Bike Frame: Steel
  • Bike Suspension: Front suspension
  • Fork: Zoom suspension, 40mm travel
  • Crankset: 40mm 1-piece 40
  • Bottom Bracket: Looseball
  • Shifters: SunRace twist
  • Front derailleur: N/A
  • Rear Derailleur: Shimano
  • Rear Cogs: Shimano MF-TZ20, 14-28, 6-speed freewheel
  • Number of Gears: 6
  • Brake Type: Rim brake
  • Brakes: Alloy linear
  • Brake Levers: Alloy linear
  • Rims: Steel
  • Front Hub: 36h nutted
  • Rear Hub: 36h nutted
  • Wheel Size: 20 inches
  • Tires: Junior ATB knobby 20 x 2.0
  • Handlebar Shape: Riser bar
  • Handlebar: Steel junior riser
  • Stem: Steel quill
  • Seat Post: Steel Pillar 27.2mm
  • Saddle: Junior ATB 2-panel
  • Pedals: Resin platform
  • Headset: Threaded 1 inch

Product Details

  • Product Dimensions: 47 x 22 x 8 inches ; 35.6 pounds
  • Shipping Weight: 35.6 pounds
  • Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • Shipping Advisory: This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
  • ASIN: B003RT6MXU
  • Item model number: 02-10-2306
  • Average Customer Review: 3.3 out of 5 stars  See all reviews (23 customer reviews)
  • Amazon Best Sellers Rank: #579,356 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
  • Product Warranty: For warranty information about this product, please click here

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

By Dennis M. Mcgraw III on May 8, 2011
Verified Purchase
I bought this bike for my daughters 8th birthday. I have aways liked and respected the Diamondback name and thought this bike would be another quality product. I was very disapointed. The bike is very heavy. The front shock is a joke, it does not compress at all. The shifter and rear deraileur broke after only 6 weeks of very light use. I am very disapointed. I also contacted Diamondback about returning this bike and they sent me a few nice e-mails and promised to contact Amazon but were no help at all. I still have this bike, I would LOVE to ship it back for a refund. Very disapointed and let down. I have 3 children and I will never purchace a Diamondback product again and I will never buy another expensive item from Amazon again. If I had bought this from a local store Im sure I could have returned it, but now I'm stuck with a junk bike.
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The bike is good for the money. It's quite a bit better than the cheap kids bikes you can get from the large retail chains.

However, as many people have already addressed, the shifter is just too hard for any kid to realistically operate. The good news is that Diamondback seems to be aware of the issue. You can just call them at 1-800-222-5527. They will send you the replacement parts. The guy I talked to was Jason, and he was very nice and professional.

Update: I have received the replacement shifter from Diamondback. The one they sent to me was an Sram MRX Comp Twister Mountain Bike Shifter - Rear (6 Speed), and here is the link. http://www.amazon.com/SRAM-Bicycle-Twist-Shifter-6-Speed/dp/B0017YRQKA/. It's not very expensive, so if you don't want to go through the hustle of calling them, just order from Amazon. I will update how it performs once I install it.
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I just purchased this bike for my 8 year old daughter. She is a tough little girl, with strong grip. However, she can only downshift (like going from 1st to 2nd, or 2nd to 3rd), but not up shift (like going 3rd to 2nd, or 2nd to 1st). I think the shifting could be easily fixed by using a different style shifter instead of the twist-grip.

Also - the front shock will only compress when I put all of my 180 lbs over the handle bars. What a JOKE!

Like the other review, it is heavy, but that doesn't bother me much. It is bullet-proof.

I'm attempting to return it - we'll see how far I get.
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Verified Purchase
The bike was delivered partly assembled, so putting it together was easy. The brakes and the gears work fine. We have not had a chance to take in in rough terrain to see how well the front shocks work. Overall it feels like a good bike and my girl loves it.

The reason for giving it 4 stars is that the instructions which came with the bike are awful and some parts have words all together "likethis".
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Verified Purchase
I recently purchased this bike for my 7 year old daughter. The very first day she said that she could not shift gears. After hours of trying to make the shifting easier, I made no progress. I tried every adjustment possible, even my best friend who is a bike builder for Santa Cruz Bikes couldnt make it easier to shift. He found out that the rear derailer is the part at fault. the steel cable when it exits the protective sleeve is at an angle and cause friction when being pulled. I contacted diamondback regarding this and their response was a joke. They told me that it is not a mechanical problem but a strength problem. HELLO!?!? 7 year old here trying to shift the gears here. The funny thing is that my 10 year old daughter can shift the gears fine however she already has a 26in bike and the gear shifting on her bike is way easier. So what is the point in buying this bike if you have to be older and stronger to shift the gears. At that point your child will have already outgrown the bike and ready for a bigger one.
So because of the quality of the bike and the customer service I got from the company this bike gets the lowest rating possible
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This is a really cool bike for a 7- to 8-year-old.

It has a couple flaws you need to be aware of though: 1) MAJOR ISSUE: the shifter that came with the bike was really stiff and completely unusable. Apparently this is a known issue, you can call diamondback, and they'll send you a new one (of a better brand). Another Amazon reviewer was kind enough to include their phone #. Personally, I just ordered a new one from Amazon for under $20. 2) MINOR issue that I didn't think about... this bike is made of steel, not aluminum. Translation: it's REALLY heavy. It's heavier than my adult large mountain bike I think.

I purchased a kick-stand for $5 and a bell for $5. Both install in minutes and can even be found cheaper at someplace like Target or Wal-Mart.

All in all, though, I think this is a really nice bike for a young girl... and for that price. If you feel like spending $60-$100 more, check out the better, aluminum, Diamondback Octane 20.

UPDATE: my daughter loves the new SRAM trigger shifter I installed to replace the SunRace grip/twist shifter. She can shift the gears herself now. Took about 1 hour to install (a pro could do it in a few minutes). Shimano SL-TX30 Tourney 6 Speed Shift Levers.
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