ALCOA HD SPEC DATA BROCHURE JAN 04 ALCOA FORGED ALUMINUM WHEEL ACCESSORIES HUB COVER SYSTEMS The Alcoa Hub Cover System, made from high impact strength ABS/PC plastic, has a gleaming chrome-plated finish that resists corrosion so the good looks last. Fits 10-hole 22.5" and 24.5" wheels with 285.75mm (11.25") bolt circles. Hug-A-Lug® wrench, P/N 000600 for hub piloted kits and P/N 000500 for ball seat kits, are included. Hub Piloted Wheel Kits — Clamp-On Nut Covers Ball Seat, Stud Located Wheel Kits — Clamp-On Nut Covers P/N 076018 Steer axle wheel kit for two hub piloted wheels P/N 076015 Steer axle wheel kit for two ball seat wheels P/N 077018 Drive axle wheel kit for four hub piloted wheels P/N 077015 Drive axle wheel kit for four ball seat wheels Hub Piloted Wheel Kits — Screw-On Nut Covers P/N 076085 Steer axle wheel kit for two hub piloted wheels P/N 077085 Drive axle wheel kit for four hub piloted wheels ALCOA FORGED ALUMINUM WHEEL MOUNTING HARDWARE Two-piece, 33mm hex, M22 x 1.5mm, RH thread, flange nut. Mounts single and dualed wheels to wheel centering hubs. Right hand threads used on both sides of vehicle. Single wheels require 2" (50.8mm) stud standout. Dualed wheels require 2-13/16" stud standout. P/N 39874 (supersedes P/N 39701) Two-piece, 33mm hex, M22 x 1.5mm, RH thread, sleeved cap nut. Mounts single aluminum wheels, with 32mm bolt holes, to wheel centering hubs with stud standouts less than 1.92” (48.75mm). Right-hand threads used on both sides of vehicle. P/N 4306.32 1-1/8"x16 cap nut. Mounts standard single wheels and wide base wheels to 1-1/8" studs and provides additional 1/8" hex height. Also mounts outer dualed wheel to 1-1/8" inner cap nut. P/N 5996R, 5996L (replaces P/N 5552R, 5552L). 3/4"x16 cap nut. Mounts standard single wheels and wide base wheels to 3/4" studs. P/N 5995R, 5995L (replaces P/N 5554R, 5554L). Inner cap nut for use with standard length studs (1.31" to 1.44" stud standout) or longer studs not to exceed 1.88" stud standout. Full external threads, counter bore 5/16" deep at open end. For use with aluminum inner and aluminum outer wheels. Prevents stud from bottoming out in cap nut. P/N 5988R, 5988L (Grade 8). Inner cap nut, inner thread 3/4"x16, outer thread 1-1/8"x16. For use with steel inner dual wheel and aluminum outer dual wheel with 1.31" to 1.44" stud standout. P/N 7896R, 7896L (Grade 8). To see the full line of Genuine Alcoa Wheel Accessories or to purchase online, go to www.alcoawheelaccessories.com. To request a copy of the printed Accessories Catalog, call toll-free 800-242-9898, opt 1. See www.alcoawheels.com for literature and service information. HUG-A-LUG® COVERS Hug-A-Lug® cap nut covers snap on, snap off by hand. Available to fit ball seat or hub piloted lug nuts. Alcoa Hug-A-Lug® cap nut covers are made of impact resistant ABS plastic and have a brilliant chrome finish. Ball Seat, Stud located Cap Nut Cover P/N TYPE FITS CAP NUTS 000150 Truck, Bus, Motorhome 1-1/2" hex, 3/4" height Hub Piloted Cap Nut Covers P/N TYPE FITS CAP NUTS 000180 Bus 33mm hex, .886 to 1" height 000181 Truck 33mm hex, 27-31mm height 000182 Truck 1-1/2" hex, 1-7/16" height 000183 Bus 1-1/2" hex, 7/8" height Two-piece, 33mm hex, M22 x 1.5mm, RH thread, sleeved cap nut. Mounts dual aluminum wheels, with 32mm bolt holes, to wheel centering hubs with stud standouts less than 2.85” (72mm) Right-hand threads used on both sides of vehicle. P/N 4307.32 FOLLOW PROPER SERVICE AND OPERATING PROCEDURES Alcoa wheels for heavy duty trucks and for motorhomes are as easy to service as other disc wheels. It is important that the tools be kept smooth and free of nicks or spurs to avoid damage to the wheel surfaces. Tire mounting, tire demounting and wheel inspection procedures are also the same for most Alcoa aluminum wheels, with the exception of the 19.5" RW wheels. Alcoa 19.5" RW wheels must have the tires mounted and demounted over the disc of the wheel only. For complete instructions on the proper mounting and demounting of tires on Alcoa 19.5" RW wheels, contact Markinetics Inc., Alcoa Inquiry Fulfillment System, P.O. Box 809, Marietta, Ohio 45750, or call (800) 242-9898, option 1. Correct torque is as important for aluminum as it is for steel disc wheels. Overtorquing stresses the studs and damages the wheels. Undertorquing results in loose wheels. To get the right tightness, use the right torque ... no more, no less. Inner and single cap nuts used with stud located wheels should be tightened to a torque of 450-500 foot-pounds if the threads are not lubricated; if the threads are lubricated, nuts should be tightened to a torque of 350-400 foot-pounds. Note: when dualing steel wheels with Alcoa aluminum wheels, follow the steel wheel manufacturer’s recommendations regarding the proper torque and use of thread lubricants to mount the wheel. Two-piece cone lock cap nuts with a 33mm hex head design used with hub piloted wheel should be tightened to a torque of 450-500 foot-pounds. Follow the same safety precautions and OSHA regulations for both steel and aluminum disc wheels. These include using an OSHA-approved safety cage to inflate the tires; do not overinflate and never use a tube in a tubeless tire. Do not weld or heat aluminum wheels. Destroy and scrap damaged wheels. Wheels get their strength from heat treating. The heat of welding destroys the strength of the wheel. Follow the procedures outlined in the Alcoa Aluminum Truck Wheel Service Manual and Operating Instructions. To request a copy of the truck wheel service manual, call toll-free 800-242-9898, option 1. To view online, go to www.alcoawheels.com. AIR VALVES, VALVE EXTENSIONS AND VALVE EXTENSION STABILIZER SYSTEMS All Alcoa drop center wheels for tubeless tires come with nickel-plated air valves installed. Valve numbers TR-509 and TR-511 should be installed with 10 to 14 ft. lbs. torque. Valve numbers TR-543, TR-543C, TR-543E, TR-544D, TR-545D, TR-545E, TR-546E and 60MS27N should be installed with 6.8 to 10.6 ft. lbs. torque. Valve stem extension and stabilizer system makes inner dual valve stem easy to reach, reducing extension breakage. For use with aluminum inner and aluminum outer dual wheel applications only. Available for 19.5", 22.5", 24.5" Alcoa Classic and New Generation hub piloted or ball seat mounting wheels. Contact your local Alcoa wheel sales representative for complete part number and fitment information. Typical configuration of single wheel and dual wheel mounting on stud located, ball seat (double cap nut) wheels. Typical assembly of single and dual wheels of hub piloted type. Alcoa Wheel and Forged Products 1600 Harvard Avenue Cleveland, Ohio 44105 800-242-9898 www.alcoawheels.com 02/04/15M CMYK ALCOA HD SPEC DATA BROCHURE Jan 04 Alcoa aluminum disc wheel mounting dimensions are consistent with SAE Recommended Practice J694 February 2001. Part numbers listed for all sizes are satin finish. Polished finishes are indicated by changing the last digit of the part number listed to one of the following. For polished outside only, part number should end in “1.” For polished inside only, part number should end in “2.” For polished both sides, part number should end in “3.” Valve hole is on the inside. Dura-Bright® surface treatment wheels are identified by using the regular numerical part number and the addition of “DB” at the end. Finishes are indicated by changing the last numerical digit of the part number to one of the following. For brushed both sides, the number is “0.” For buffed outside only, the number is “1.” For buffed inside only, the number is “2.” For buffed both sides, the number is “3.” Currently, only the wheel item numbers marked with “DB” are available with the Dura-Bright® surface treatment. Dura-Flange® wheels are identified by using the regular numerical part number and the addition of “DF” at the end. Only the wheel item numbers marked with DF are available with the Dura-Flange® option and are only available as satin finish (last part number ends in “0"). CLASSIC TUBELESS WHEELS (round hand holes) ENGLISH UNITS Item no. Wheel description Maximum wheel load1 in lbs. Wheel wt. lbs. Outset inches3 Inset inches Maximum inflation PSI—cold Valve stem Part number2 DiscMate Stabilizer Front outer cap nuts Rear inner Rear inner cap nuts cap nuts Al/Al Al/Stl Rear outer cap nuts Lug nut covers Hub cover system kits front / rear 17.5x6.75-15°DC 5070 32 5.55 4.72 125 TR543C 663170 - Item no. 2125 3/4" Stud 5995 L&R, 5988 L&R 7896 L&R 1-1/8" Stud 5996 L&R 17.5x6.75-15°DC 5070 31 5.55 4.72 125 TR543C 663070 - 22.5x7.50-15°DC 7200 53 6.28 5.32 120 DB 22.5x8.25-15°DC 7200 53 6.66 5.68 120 DB 5 22.5x9.00-15°DC 9000 60 6.94 5.94 130 6 22.5x12.25-15°DC 11,400 62 .56 Reversible — 125 7 22.5x12.25-15°DC 11,400 66 3.88 2.76 125 3 4 8 11,000 70 5.84 4.68 120 9 22.5x13.00-15°DC 12,300 72 3.5 2.38 125 10 22.5x13.00-15°DC 11,000 73 —* 5.3 120 ††11 DB** 22.5x12.25-15°DC 12 22.5x14.00-15°DC 12,800 71 2.0 0.87 125 24.5x8.25-15°DC 7200 59 6.6 5.59 120 3/4" - 016000, 1-1/8" 017000 TR545D 883110 3/4" - 016000, 1-1/8" 017000 TR543C 893000 3/4" - 016000, 1-1/8" 017000 TR543E 823000 3/4" - 016000, 1-1/8" 017000 TR543E outset 823050 3/4" - 016000, 1-1/8" 017000 TR545E inset TR545E 823060A 3/4" - 016000, 1-1/8" 017000 3/4" - 016000, TR543E 833050 1-1/8" 017000 TR545E 833060A 3/4" - 016000, 1-1/8" 017000 TR543E outset 841100 3/4" - 016000, TR545E inset 1-1/8" 017000 TR545D 983120 3/4" - 016000, 1-1/8" 017000 TR545D 873100 150 - 22.5x13.00-15°DC 11,000 76 —* 6.12 120 TR543 833070A - 3/4" Stud 5995 L&R, 1-1/8" Stud 5996 L&R 5988 L&R 7896 L&R 5996 L&R 150 - 2225 2225 2127 - 3/4" Stud 5995 L&R, 1-1/8" Stud 5996 L&R 3/4" Stud 5995 L&R, 1-1/8" Stud 5996 L&R 3/4" Stud 5995 L&R, 1-1/8" Stud 5996 L&R 3/4" Stud 5995 L&R, 1-1/8" Stud 5996 L&R 3/4" Stud 5995 L&R, 1-1/8" Stud 5996 L&R 3/4" Stud 5995 L&R, 1-1/8" Stud 5996 L&R 3/4" Stud 5995 L&R, 1-1/8" Stud 5996 L&R 3/4" Stud 5995 L&R, 1-1/8" Stud 5996 L&R 3/4" Stud 5995 L&R, 1-1/8" Stud 5996 L&R 3/4" Stud 5995 L&R, 1-1/8" Stud 5996 L&R 5988 L&R 7896 L&R 5996 L&R 150 5988 L&R 7896 L&R 5996 L&R 150 5988 L&R 7896 L&R 5996 L&R 150 3/4" Stud 5995 L&R, 1-1/8" Stud 5996 L&R 3/4" Stud 5995 L&R, 1-1/8" Stud 5996 L&R 3/4" Stud 5995 L&R, 1-1/8" Stud 5996 L&R 3/4" Stud 5995 L&R, 1-1/8" Stud 5996 L&R 3/4" Stud 5995 L&R, 1-1/8" Stud 5996 L&R 3/4" Stud 5995 L&R, 1-1/8" Stud 5996 L&R 3/4" Stud 5995 L&R, 1-1/8" Stud 5996 L&R 150 - - - - - - - - - - - - 5988 L&R 7896 L&R 150 150 150 150 150 150 Front - 076015 Rear - 077015 Front - 076015 Rear - 077015 Front - 076015 Rear - 077015 Front - 076015 Rear - 077015 Front - 076015 Rear - 077015 Front - 076015 Rear - 077015 Front - 076015 Rear - 077015 Front - 076015 Rear - 077015 Front - 076015 Rear - 077015 Front - 076015 Rear - 077015 - - - - 39946 - - - - - - 190 - Eight-hole, hub piloted mounting—6.50 in. bolt circle, 4.770 in. hub bore, .68 in. bolt hole dia. (use two-piece flange nuts) 14 17.5x6.75-15°DC 6050 30 - 0 130 TR542 661400 - 17.5x6.75-15°DC 6050 30 - 0 130 TR542 662400 - 16 22.5x7.50-15°DC 7300 53 6.28 5.44 120 ** 17 22.5x8.25-15°DC 7300 50 6.66 5.82 - - 39946 - - - 190 - ††18 DB 19 TR545D 873400 014000 2225 39874 - - 39874 181 - 120 TR545D 883420 014000 2227 39874 - - 39874 181 - 841400 014000 - 39874 - - 39874 181 - 983400 014000 2245 39874 - - 39874 181 - 22.5x14.00-15°DC 12,800 71 2.0 0.87 125 TR543E outset TR545E inset 24.5x8.25-15°DC 7300 62 6.6 5.77 120 TR509 Rear outer cap nuts Lug nut covers Hub cover system kits front / rear Front - 076018 or 076085‡ Rear - 077018 or 077085‡ Front - 076018 or 076085‡ Rear - 077018 or 077085‡ Front - 076018 or 076085‡ Rear - 077018 or 077085‡ 74 6.42 5.3 120 TR545E 833660A 011000 - 39874 - - 39874 181 ††32 22.5x14.00-15°DC 12,800 71 2.0 0.87 125 TR543E outset TR545E inset 841600 011000 - 39874 - - 39874 181 ††33 22.5x14.00-15°DC 12,800 71 1.13 0 125 TR545E outset TR543E inset 841610 011000 - 39874 - - 39874 181 24.5x8.25-15°DC 7300 55 6.6 5.73 120 TR545D 983620 011000 2247 39874 - - 39874 181 Front - 076018 or 076085‡ Rear - 077018 or 077085‡ 24.5x8.25-15°DC 8000 65 6.6 5.63 120 TR545D 985600 011000 2245 39874 - - 39874 181 Front - 076018 or 076085‡ Rear - 077018 or 077085‡ DB DF 34 § 35 DB 36 22.5x8.25-15°DC 7300 53 6.66 5.82 120 TR545D 883610 015000 2225 - - - - 182 - DB 37 24.5x8.25-15°DC 7300 62 6.6 5.77 120 TR545D 983610 015000 2245 - - - - 182 - Valve stem Part number2 DiscMate Stabilizer Front outer cap nuts Rear outer cap nuts Lug nut covers Hub cover system kits front / rear CLASSIC TUBELESS WHEELS (round hand holes) ENGLISH UNITS (METRIC UNITS) Item no. Wheel description Maximum wheel load1 in lbs. (kilograms) Wheel wt. lbs. (kilograms) Outset inches3 Inset inches (mm) (mm) Maximum inflation PSI—cold (KPa) Rear inner Rear inner cap nuts cap nuts Al/Stl Al/Al Eight-hole, hub piloted mounting—275mm bolt circle, 221.1mm hub bore, 24.75mm bolt hole diameter (use two-piece flange nuts) DB 38 17.5x6.75-15°DC 5515 (2500) 29.5 (13.4) 5.55 (141) 4.72 (120) 142 (978) TR543C 663470 014000 2126 39874 - - 39874 181 - 39 19.5x6.75RW-15°DC 5515 (2500) 37.0 (16.8) 5.55 (141) 4.72 (120) 142 (978) TR543C 764480 014000 2126 39874 - - 39874 181 - 40 19.5x7.50RW-15°DC 6615 (3000) 37.7 (17.1) 6.10 (155) 5.28 (134) 142 (978) TR543C 773400 014000 2126 39874 - - 39874 181 - 39874 - - 39874 - - 39874 - - 39874 181 Front - 076018 or 076085‡ Rear - 077018 or 077085‡ 10-hole, hub piloted mounting—225mm bolt circle, 176.1mm hub bore, 26.50mm bolt hole diameter (use two-piece flange nuts) 41 17.5x6.00-15°DC 5515 (2500) 28.0 (12.7) 5.24 (133) 4.49 (114) 142 (976) TR543D 663200 - 2125 10-hole, hub piloted mounting—285.75mm bolt circle, 220.1mm hub bore, 26.75mm bolt hole diameter (use two-piece flange nuts) 42 19.5x7.50RW-15°DC 6615 (3000) 37.7 (17.1) 6.10 (155) 5.28 (134) 142 (978) TR543C 773600 011000 2126 10-hole, hub piloted mounting—335mm bolt circle, 281.2mm hub bore, 26.75mm bolt hole diameter (use two-piece flange nuts) DB †43 22.5x8.25-15°DC 7830 (3550) 55.1 (25.0) 6.60 (168) 5.70 (145) 138 (952) 60MS27 885530 013000 - 39874 - - 39874 181 - DB †44 22.5x9.00-15°DC 8820 (4000) 58.0 (26.3) 6.93 (176) 6.02 (153) 142 (978) 60MS27 894530 013000 - 39874 - - 39874 181 - ‡‡45 22.5x13.00-15°DC 11,000 (4988) 75.0 (34.0) — 6.12 (155) 120 (827) TR543 833570A 013000 - 39874 - - 39874 181 - ‡‡46 22.5x13.00-15°DC 12,800 (5806) 76.0 (34.5) — 6.12 (155) 120 (827) TR543 833570B 013000 - 39874 - - 39874 181 - 47 24.5x8.25-15°DC 8500 (3855) 62.6 (28.4) 120 (827) TR545D 983500 013000 - 39874 - - - 181 - 6.79 (172.5) 5.81 (147.5) 10-hole, hub piloted mounting—335mm bolt circle, 281.2mm hub bore, 32.87mm bolt hole diameter (use two-piece sleeved cap nuts) DB †48 22.5x8.25-15°DC (32mm bolt hole) 7830 (3550) 55.1 (25.0) 6.60 (168) 5.70 (145) 138 (952) 60MS27 885550 018000 - 430632 - - 430732 - - DB †49 22.5x9.00-15°DC (32mm bolt hole) 8820 (4000) 57.1 (25.9) 6.93 (176) 6.02 (153) 142 (978) 60MS27 894550 018000 - 430632 - - 430732 - - 22.5x7.50-15°DC 7300 53 6.28 5.44 120 TR545D 873600 011000 2225 39874 - - 39874 181 Front - 076018 or 076085‡ Rear - 077018 or 077085‡ 22.5x8.25-15°DC 7300 47 6.66 5.81 120 TR545D 883620 011000 2227 39874 - - 39874 181 Front - 076018 or 076085‡ Rear - 077018 or 077085‡ 22.5x8.25-15°DC 8000 55 6.66 5.69 120 TR543C 885600 011000 - 39874 - - 39874 181 Front - 076018 or 076085‡ Rear - 077018 or 077085‡ 23 22.5x9.00-15°DC 9000 60 6.94 6.04 130 TR543C 893600 011000 2127 39874 - - 39874 181 24 22.5x9.00-15°DC 10,000 53 — 3.12 130 TR545E 893630 011000 - 39874 - - 39874 181 Front - 076018 or 076085‡ Rear - 077018 or 077085‡ Front - 076018 or 076085‡ Rear - 077018 or 077085‡ 25 22.5x10.50-15°DC 10,500 68 6.61 5.5 130 TR544 803600 011000 - 39874 - - - 181 Front - 076018 or 076085‡ 26 22.5x12.25-15°DC 11,400 63 .56 Reversible — 125 TR543E 823600 011000 - 39874 - - 39874 181 27 22.5x12.25-15°DC 11,400 66 3.88 2.75 125 TR543E outset TR545E inset 823650 011000 - 39874 - - 39874 181 28 22.5x12.25-15°DC 11,000 71 5.8 4.68 120 TR545E 823660A 011000 - 39874 - - 39874 181 29 22.5x12.25-15°DC 10,000 74 6.24 5.12 120 TR545E 823670A 011000 - 39874 - - 39874 181 125 TR543E outset TR545E inset 833650 011000 - 39874 - - 39874 181 Front - 076018 or 076085‡ Rear - 077018 or 077085‡ Front - 076018 or 076085‡ Rear - 077018 or 077085‡ Front - 076018 or 076085‡ Rear - 077018 or 077085‡ Front - 076018 or 076085‡ Rear - 077018 or 077085‡ Front - 076018 or 076085‡ Rear - 077018 or 077085‡ Wheels with the Dura-Bright® surface treatment option shine without polishing. Just wash with soap and water, do not polish or clean with abrasives. For more information call 800-242-9898 option 6 or visit www.dontpolish.com. DB 20 DB DF 21 DB DF § Stabilizer Rear inner Rear inner cap nuts cap nuts Al/Al Al/Stl Do not exceed maximum wheel load. Customer must compare OEM vehicle load rating to maximum wheel load rating. Do not overinflate. Refer to tire manufacturer's recommendation for proper tire pressure. Before mounting the tire, perform a wheel fitment check to ensure proper clearance from any obstructions. Valve hole is on the inside unless noted otherwise. 1 Capacity ratings as dual or single in highway service — bias-ply or radial. Load ratings in lbs. for items 38 through 49 rounded to nearest multiple of 5. 2 Some wheels may bear part numbers not shown in this manual. Before servicing these wheels, contact your Alcoa wheel representative for proper load, inflation and part compatibility information. 3 Outset (positive)/inset (negative) — The distance from the rim centerline to the mounting face of wheel. Inset (negative) places the rim centerline inboard of the wheel mounting face and outset (positive) places the rim centerline outboard of the wheel mounting face (1/2 dual spacing = offset). * These wheels must be installed only in the inset position because spherical ball seats are on only one side of the disc. **Indicates lighter weight Alcoa New Generation wheels. † Indicates European New Generation Wheels. ††P/Ns 841100, 841400, 841600 & 841610 are recommended for use on drive axle and trailer axle positions. ‡ Hub cover system kits P/N 076085 (front) and P/N 077085 (rear) contain screw-on Hug-a-lug® nut covers and require a minimum of four threads of the stud to extend above the tightened cap nut for use. ‡‡ The minimum stud standout required for P/N 833570 is 2.375 inches (60.3mm) when using wheel nut P/N 39874. Taller nuts will require more stud standout. § P/Ns 885600 and 985600 are Alcoa Severe Service Wheels and are available with either the Dura-Flange® treatment option or the Dura-Bright® surface treatment option. Note: The Dura-Bright® surface treatment and the Dura-Flange® options are not currently available together on the same wheel. Dura-Bright® is available in all polishing finishes, Dura-Flange® is only available in satin finish. 10-hole, hub piloted mounting—285.75mm bolt circle, 220.1mm hub bore, 26.75mm bolt hole diameter (use two-piece flange nuts) ** DiscMate Front outer cap nuts 11,000 Eight-hole, hub piloted mounting—275mm bolt circle, 221.1mm hub bore, 26.75mm bolt hole diameter (use two-piece flange nuts) DB Part number2 22.5x13.00-15°DC Eight-hole, hub piloted mounting—6.50 in. bolt circle, 4.880 in. hub bore, .68 in. bolt hole dia. (use two-piece flange nuts) 15 Valve stem 10-hole, hub piloted bus mounting—11.25 in. bolt circle, 8.670 in. hub bore, 1.219 in. bolt hole diameter (use two-piece flange nuts) 2125 10-hole, stud located, ball seat mounting—13.19 in. bolt circle, 10.65 in. hub bore (valve hole is on outside), 1.360 in. bolt hole diameter 13 Inset inches Maximum inflation PSI—cold DB DF 5996 L&R 10-hole, stud located, ball seat mounting—11.25 in. bolt circle, 8.73 in. hub bore, 1.219 in. bolt hole diameter DB Wheel wt. lbs. Outset inches 3 31 10-hole, stud located, ball seat mounting—8.750 in. bolt circle, 6.495 in. hub bore, 1.219 in. bolt hole diameter 2 Wheel description Maximum wheel load1 in lbs. 10-hole, hub piloted mounting—285.75mm bolt circle, 220.1mm hub bore, 26.75mm bolt hole diameter (use two-piece flange nuts) — continued from previous page ** Six-hole, stud located, ball seat mounting—8.750 in. bolt circle, 6.495 in. hub bore, 1.219 in. bolt hole diameter 1 CLASSIC TUBELESS WHEELS (round hand holes) ENGLISH UNITS continued 22 DB DB DB 30 22.5x13.00-15°DC 12,300 73 3.5 2.38 CMYK