FLYBIRD DB2 Adjustable Dumbbell Pair, 55 lb vs PowerBlock Elite USA 90 Adjustable Dumbbells, Pair, 5-90 lb
These are side-by-side facts taken from each product guide: published specifications, strengths and caveats as their sources state them. This page is not a test, a ranking or a verdict about which model is better.
FLYBIRD DB2 Adjustable Dumbbell Pair, 55 lb
Home training that needs five fixed steps from 15 to 55 lb and room for two 19-inch trays
A pair of dial-select dumbbells set by twisting the handle on its tray to 15, 25, 35, 45 or 55 lb. The short manual stresses turning the dial only on the tray and waiting for the click. Sources disagree on the model name, the item weight and whether the warranty is one year or two.
Published specifications
- Listing and maker: pair, 15/25/35/45/55 lb per hand, 10 lb steps
- Listing and maker: 19 x 8.5 x 8 in per dumbbell
- Maker: 8 plates, about 7.7 in plate diameter, 1 in handle
- Maker: 58 lb (26.4 kg) item weight; listing says 27.5 lb
- Manual: dial turns only on the tray; minimum user age 15
- Warranty: 1 year on maker page; 2 years on listing
Strengths
- Weight changes by twisting the handle on the tray, with a click at each step before lifting
- Five settings per hand in one footprint, sold as a pair with a tray for each dumbbell
- Maker FAQ covers a stuck dial, a weight mismatch and buying a replacement tray
Caveats
- Warranty is one year on the maker page but two on the listing, and the manual is silent
- Only 10 lb steps, with nothing between the five settings
- Maker spec names the model Lark Select and gives a 58 lb item weight, clashing with the listing
Read the full FLYBIRD DB2 Adjustable Dumbbell Pair, 55 lb guide
PowerBlock Elite USA 90 Adjustable Dumbbells, Pair, 5-90 lb
A home lifter who wants up to 90 lb per hand in a nested set and will not drop the weights
A pair of nested PowerBlock dumbbells with Stage 1, 2 and 3 fitted, running 5 to 90 lb per hand in 2.5 and 5 lb steps, with USA-made steel plates and a tethered magnetic pin. The manual says dropping voids the warranty, and PowerBlock's own documents give that warranty as 10 years or 5 years.
Published specifications
- Listing and maker: pair, 5-90 lb per hand, Stages 1-3 included
- Maker: 16.25 x 6 x 6 in; listing says 12 x 6 x 6 in
- Maker: 32 mm knurled stainless grip; two 2.5 lb micro weights per handle
- Manual: handle 5, 7.5 or 10 lb; pin tethered to top plate rail
- Manual: home use only; do not drop; stand is optional and sold separately
- Warranty: 10-year limited in manual; 5-year residential on maker page
Strengths
- All three stages come with this listing, taking each hand from 5 to 90 lb in small steps
- Tethered magnetic pin with a manual that spells out how to check it before each lift
- Maker publishes a full manual, specs and FAQ, including what is and is not compatible
Caveats
- Warranty is 10 years in the manual but 5 years on PowerBlock's page; dropping voids it either way
- Size differs by source: 16.25 in long per the maker, 12 in on the listing
- No stand included, and Elite EXP kits and accessories do not fit
Read the full PowerBlock Elite USA 90 Adjustable Dumbbells, Pair, 5-90 lb guide
How to choose between them
Choose the FLYBIRD DB2 Adjustable Dumbbell Pair, 55 lb if your situation matches: Home training that needs five fixed steps from 15 to 55 lb and room for two 19-inch trays. Its main caveat: Warranty is one year on the maker page but two on the listing, and the manual is silent.
Choose the PowerBlock Elite USA 90 Adjustable Dumbbells, Pair, 5-90 lb if your situation matches: A home lifter who wants up to 90 lb per hand in a nested set and will not drop the weights. Its main caveat: Warranty is 10 years in the manual but 5 years on PowerBlock's page; dropping voids it either way.
Both entries repeat what each guide records. Confirm the model, included parts and availability on the current listing before ordering.
Primary sources
- FED Fitness product page: Flybird Series DB2 Quick Adjustable Dumbbell 55LBS Source for FLYBIRD DB2 Adjustable Dumbbell Pair, 55 lb
- Adjustable Dumbbell Set 25/55 lbs user manual linked as the Flybird DB2 manual Source for FLYBIRD DB2 Adjustable Dumbbell Pair, 55 lb
- PowerBlock product page for the Elite USA 90 Source for PowerBlock Elite USA 90 Adjustable Dumbbells, Pair, 5-90 lb
- PowerBlock Elite USA Owner's Manual Source for PowerBlock Elite USA 90 Adjustable Dumbbells, Pair, 5-90 lb
- PowerBlock instruction manual index listing the Elite USA manual Source for PowerBlock Elite USA 90 Adjustable Dumbbells, Pair, 5-90 lb
Primary sources checked .