305 lb. Olympic Bumper Plate Packages with Weightlifting Bar and Collars – Ivanko (OBP-305LB)

Plate Sizes lbs: 5-45 lbs.
Package: 305 lb.
Uses: Performance Centers, Professional Sports Teams, School Weight Rooms
$1,645.00 IRON COMPANY

Ivanko 305 lb. Complete Bumper Weight Plate Barbell Sets - These four Ivanko bumper barbell sets are packaged for our customers buying convenience. Each set includes a 250 lb. set of all black or colored OBP Olympic bumper plates with cast iron cores. These solid cast iron cores in each OBP plate greatly reduce their overall thickness making them easier to handle and allowing the lifter to pack more weight onto the bar. All four sets include a pair of Ivanko CO-2.5KG Olympic Pressure Ring Collars. Each heavy-duty barbell collar consists of a cast iron body weighing 5.5 lbs. each. The special internal "pressure ring" design features a ring that tightens around the circumference of the bar as the user turns the lever. Once these collars are fully tightened they will hold your plates on the bar more securely than any other barbell weightlifting collar, even during CrossFit style Olympic weightlifting. The biggest difference between these sets is the bar that they utilize. The OBP-305LB/86 and OBPC-305LB/86 each include the OB-86B Light Commercial Weight Lifting Bar. Purchase this set if you are putting your barbell set in a "light commercial" environment such as a fitness studio, school weight room or even a garage gym. For the ultimate in quality and longevity that can go anywhere, the remaining two sets offering the OB-20KG power bars are exactly what you want. The OB-20KG USA Made competition bar can hold up under the harshest environments including CrossFit boxes and commercial gyms. They can take a beating and will not bend or fall apart like other bars used with bumper plates.

Need a custom plate package or bulk order quote? Call an IRON COMPANY® Ivanko free weight specialist today at 1-888-758-7527. You can also email quotes@ironcompany.com.

Available Packages:

  • OBP-305LB/86 - (1) OBP-250 Black Bumper Set - 250 lbs, (1) OB-86B Light Commercial Bar, (1 pair) CO-2.5KG Olympic Compression Ring Collars (actual package weight 304 lbs. total)
  • OBPC-305LB/86 - (1) OBP-C-250 Colored Bumper Set - 250 lbs, (1) OB-86B Light Commercial Bar, (1 pair) CO-2.5KG Olympic Compression Ring Collars (actual package weight 304 lbs. total)
  • OBP-305LB/20 - (1) OBP-250 Black Bumper Set - 250 lbs, (1) OB-20KG Commercial Bar, (1 pair) CO-2.5KG Olympic Compression Ring Collars (actual package weight 305 lbs. total)
  • OBPC-305LB/20 - (1) OBP-C-250 Colored Bumper Set - 250 lbs, (1) OB-20KG Commercial Bar, (1 pair) CO-2.5KG Olympic Compression Ring Collars (actual package weight 305 lbs. total)

Plate Features:

  • Full Commercial Rated - Performance Centers, Professional Sports Teams, CrossFit
  • Plate Material: Virgin rubber with unique sulfur-free curing process to eliminate offensive odors
  • Low odor virgin rubber ideal for confined areas
  • Color coded for quick size identification (colored 25, 35, and 45 lb. plates only)
  • Numbers are permanently molded into each plate
  • Recessed 2" stainless steel sleeve prevents metal to metal contact and will not rust
  • Cast iron core greatly reduced the bulk of each plate allowing easier handling and more weight to be loaded onto the bar
  • Diameter: 17.75"
  • Protects facility floors from repeated barbell drops
  • Cuts down noise and vibration
  • Great for Olympic lifting, gaining strength and adding muscle
  • 1-Year commercial warranty against factory defects

Sizing Chart:

  • All plates are 17.75" in diameter to maintain proper bar height from floor
  • 5 lb. - 5/8" Thick
  • 10 lb. - 1-1/8" Thick
  • 25 lb. - 1" Thick
  • 35 lb. - 1-3/4" Thick
  • 45 lb. - 2-3/4" Thick

OBP-250 Plate Set Breakdown (included in OBP-300LB/86 and OBP-300LB/20 packages):

  • (4) OBP-5 - 5 lbs. - Black
  • (2) OBP-10 - 10 lbs. - Black
  • (2) OBPX-25 - 25 lbs. - Black
  • (2) OBPX-35 - 35 lbs. - Black
  • (2) OBPX-45 - 45 lbs. - Black

OBP-C-250 Plate Set Breakdown (included in OBPC-300LB/86 and OBPC-300LB/20 packages):

  • (4) OBP-5 - 5 lbs. - Black
  • (2) OBP-10 - 10 lbs. - Black
  • (2) OBPX-25Y - 25 lbs. - Yellow
  • (2) OBPX-35B - 35 lbs. - Blue
  • (2) OBPX-45R - 45 lbs. - Red

OB-86B Bar Features (included in OBP-300LB/86 and OBPC-300LB/86 packages):

  • Recommended for light commercial use
  • Black Oxide finish
  • Bar does NOT have center knurl
  • Length: 7 feet 2 inches (85-7/8")
  • Bar diameter: 30 mm
  • Bar Weight: 43.19 lbs.
  • Bolt-fastened sleeves

OB-20KG Bar Features (included in OBP-300LB/20 and OBPC-300LB/20 packages):

  • Proudly Made In The USA
  • Extra high strength precision 20KG Olympic bar
  • 200,000+ psi rated
  • Ideal bar for training the "Olympic Style" Weightlifting movements
  • Special straightness specified (Less than .006 per ft. T.I.R.)
  • Mag-tested, ultra-sonic tested, x-ray tested
  • Extremely accurate weight (within 1/2 oz)
  • Ground and polished
  • Beautiful black oxide finish
  • Bar Diameter: 28mm
  • Sleeve Diameter: 49.40mm to 49.56mm
  • Metric length 2.19709m (86 1/2")
  • Chrome end caps
  • Does NOT have center knurl
  • Bar Weight: 20 kg (44 lbs.)

OB-20KG Specifications

CO-2.5KG Olympic Barbell Collar Features (included in all packages):

  • Cast Iron Collars
  • Fits bars with 49.5mm-50mm sleeve diameter
  • Weight - 2-1/2 kilos (5.5 lbs.) each | 5 kilos (11 lbs.) total for pair
  • Pressure Ring tightly "clamps" around bar sleeve for a secure fit
  • Spin-Lock feature "locks" plates tight against inside collar of bar
  • Finish is baked on gray enamel


  • Sports performance centers
  • Professional sports teams
  • School weight rooms
  • Commercial gyms
  • Barbell clubs
  • CrossFit
  • Military fitness installations

*We recommend that the 5's and 10's are always accompanied by other sizes of plates while in use and not used by themselves. Using them on a bar by themselves will damage the plates as they are not thick enough to withstand a great amount of force.

Caution - These Ivanko plates may only be compatible with an Ivanko bar. The hole size of an Ivanko Olympic plate is 50.2mm (1.976 inches) minimum to 50.8mm (2.00 inches) maximum. This diameter may be too tight for other bars. To avoid returns, if you are unsure of the compatibility of these plates with your bar please contact an IRON COMPANY® sales rep before you buy.


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    Does NOT Include Shipping:

    • Shipping Quote: To obtain a shipping quote for Ivanko weight plate sets prior to ordering, please Contact A Sales Rep or email quotes@ironcompany.com.
    • Online Orders: Customers placing an online order will be contacted shortly after the order is received for approval of additional shipping costs to your area. Please note, we will not finalize and ship your product without prior approval of any additional shipping costs that were not included in your original order. 
    • Freight: Freight deliveries are considered "curbside" only and will be delivered on a wooden pallet in a location at your address at the drivers discretion that is suitable for a tractor trailer. Your delivery will include a 24-hour notification to schedule delivery for the next business day and lift gate service only. There will be an upcharge for any additional delivery services (i.e. inside delivery). Customers are required to be available at the time of delivery to inspect the shipment, make note of any damage or shortages, and sign the delivery receipt including notes of any damage or shortages.