Is a hub bearing included?

No. The original hub bearing cannot be reused once the hub is pressed out, so a new bearing has to be bought separately for every hub. Fitting also needs a press and the factory torque values, which is why most owners have a shop with the right tooling handle the job.

Does the Hardened Rear Hub for AP1 cars also fit the AP2?

Yes. The Hardened Rear Hub for AP1 cars is listed for both the AP1 and the 2004 to 2009 AP2, in all three bolt options. The price covers a single hub assembly, so equipping both rear corners means ordering two of the same option.

Which hub bolt option should I choose?

Pick the standard option to keep factory-length bolts. The 10mm and 20mm options arrive with reinforced M12 x 1.5 long bolts pressed in, 53mm and 63mm long overall, which widens wheel choice with big calipers or wide fenders. Confirm that your wheels clear the longer bolts first.

Why harden only part of the hub?

The manufacturer found that hardening an entire hub does not improve its durability. Induction hardening heats and rapidly cools only selected areas, raising wear resistance and fatigue strength where the loads concentrate. The treated zones and the depth were chosen from endurance racing experience with the S2000.

Do I need this on a street car?

Not always. It was built for S2000s driven hard on high-grip tires, where the factory rear hub wears out quickly from drive loads and brake heat. It works from street to circuit, but a car on standard tires that never sees a track may not load the factory hub enough to need it.

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Description

J’s Racing Hardened Rear Hub for AP1 / AP2 Honda S2000

J’s Racing’s Hardened Rear Hub for AP1 and AP2 S2000s came out of the Osaka tuner’s endurance racing program, where the factory rear hub kept failing. As the driven corner it carries constant load plus brake heat, and in races such as the Tokachi 24 Hours J’s Racing saw temperatures around the rear hub reach about 800 degrees Celsius, making hub repairs unavoidable. The fix is a genuine Honda hub with induction hardening applied only where race experience showed it was needed. It suits S2000s on sticky tires that see the circuit; a car on standard tires that stays on the street may never stress the factory part this far.

Features

Genuine S2000 rear hub with targeted induction hardening
Treatment zones and depth set from endurance racing experience
Choice of standard hub bolts, or 10mm or 20mm longer bolts installed at the factory
Long bolts in a stronger material than the factory bolts, aimed at circuit use and fitted before the hub ships
Longer bolts widen wheel choice for cars with big calipers or wide fenders

Specifications

Hub bolt thread: M12 x 1.5
Hub bolt spline diameter: 12.3mm
Bolt extension: 10mm or 20mm, by option
Overall bolt length, 10mm option: 53mm
Overall bolt length, 20mm option: 63mm

Applications

Honda S2000: AP1 | 1999-2003 | 2.0L F20C
Honda S2000: AP2 | 2004-2009 | 2.2L F22C

Notes

Priced and sold as one rear hub assembly, so both rear corners need two
A new hub bearing is required for each hub and sold separately; the old bearing cannot be reused
Installation needs a press and the factory torque values
The long bolts may not clear the back of every wheel, so check yours before ordering
Options: Standard Hub Bolts is the hardened hub alone, while the 10mm and 20mm options add pre-installed long bolts
The matching J’s Racing hardened front hub for the AP1 / AP2 S2000 is listed separately
Made to order in Japan; Bulletproof Automotive confirms lead time through J’s Racing USA after you order

Frequently Asked Questions

Is a hub bearing included? No. The original hub bearing cannot be reused once the hub is pressed out, so a new bearing has to be bought separately for every hub. Fitting also needs a press and the factory torque values, which is why most owners have a shop with the right tooling handle the job.
Does the Hardened Rear Hub for AP1 cars also fit the AP2? Yes. The Hardened Rear Hub for AP1 cars is listed for both the AP1 and the 2004 to 2009 AP2, in all three bolt options. The price covers a single hub assembly, so equipping both rear corners means ordering two of the same option.
Which hub bolt option should I choose? Pick the standard option to keep factory-length bolts. The 10mm and 20mm options arrive with reinforced M12 x 1.5 long bolts pressed in, 53mm and 63mm long overall, which widens wheel choice with big calipers or wide fenders. Confirm that your wheels clear the longer bolts first.
Why harden only part of the hub? The manufacturer found that hardening an entire hub does not improve its durability. Induction hardening heats and rapidly cools only selected areas, raising wear resistance and fatigue strength where the loads concentrate. The treated zones and the depth were chosen from endurance racing experience with the S2000.
Do I need this on a street car? Not always. It was built for S2000s driven hard on high-grip tires, where the factory rear hub wears out quickly from drive loads and brake heat. It works from street to circuit, but a car on standard tires that never sees a track may not load the factory hub enough to need it.

About J’s Racing

J’s Racing was established in Osaka in 1989, as VTEC engines and lightweight Civics and Integras were changing what a Honda could do, and it has built parts for Hondas ever since. The company develops engine response, suspension, braking, cooling and aerodynamics together as one system, then proves the parts in time attack, gymkhana, endurance and circuit racing. Its Fit lapped Tsukuba Circuit in 1’00.459, and its naturally aspirated AP1 S2000, the Maou car, became the company’s reference build for the Honda roadster. Every J’s Racing part is designed and tested in Japan, and J’s Racing USA in Carson, California handles distribution in the United States.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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