- Product Name: MR 21531 LLB - ABEC-3 Radial Bearing
- Dimensions:
- Inner Diameter (ID): 21.5mm
- Outer Diameter (OD): 31mm
- Thickness: 7mm
- Bearing Type: Radial Bearing (designed to handle radial loads)
- Precision Rating: ABEC-3 (Annular Bearing Engineers Committee standard, offering high precision and smooth operation)
- Material:
- Races: 52100 High-Carbon Chromium Alloy Steel (vacuum-degassed for purity, hardened to Rockwell HRC 64)
- Balls: Grade 10 Chromium Steel (extremely round, within 10/1,000,000ths of an inch)
- Seals:
- Type: LLB (Light-contact, dual-lip labyrinth seals)
- Design: Rides in a micro-groove to form a full labyrinth, providing superior protection against water, dust, and debris
- Grease: 90% fill with Mobilux NGLI 2 high-pressure waterproof synthetic grease (ensures durability under daily use and harsh conditions)
- Clearance: C3 (slightly increased internal clearance for smoother operation under load)
- Weight: Approximately 15-20g (exact weight not always specified, but typical for this size and type)
- Purpose:
- Commonly used as a front hub bearing (e.g., older WTB 20mm hubs)
- Also found in some ISIS bottom brackets
- Features:
- Deep-groove raceways to accommodate larger balls, enhancing load capacity and durability
- Engineered for maximum ball complement within the races
- Item Code: BB MR 21531 LLB (Enduro’s internal reference)
Additional Notes:
- This bearing is an "oddball" size, not as common as standard metric bearings (e.g., 6000 or 6800 series), making it a specialty item for specific applications like hubs or bottom brackets.
- The ABEC-3 rating ensures a balance of precision and cost-effectiveness, suitable for most cycling needs without the higher cost of ABEC-5 or ceramic options.
- Available material variants include high-carbon chromium steel (standard), 440C stainless steel, ceramic-hybrid, or XD-15 with ceramic/stainless balls, though the MR 21531 LLB is typically the steel version unless specified otherwise.
Enduro
Discover Enduro Bearings, the perfect choice for enhancing your bike’s performance with smooth, reliable, and long-lasting bearings. Ideal for mountain bikes and road bikes, Enduro Bearings ensure a smoother ride and improved durability. Upgrade your bike with components designed for excellence. Shop now for fast and reliable delivery from Hyper Ride.
Auckland Same Day Delivery
Live in Auckland? Get your order today with our Urgent Tonight service.
Excludes surfboards. Surfboards travel separately by specialist freight and are priced differently at checkout.
Available Monday to Friday, excluding public holidays. Delivered between 6:00pm and 9:00pm the same day.
Check the zone map below and look for the Urgent Tonight banner on eligible products.
We can deliver Hyper Ride warehouse orders to PO Boxes using NZ Post. Supplier-direct PO Box delivery depends on the supplier's nominated courier and we may contact you for a physical street address if required. We do not deliver to Great Barrier Island or the Chatham Islands. Rural deliveries may take an extra 1–3 working days.
Where Your Order Ships From
Hyper Ride Warehouse
Products showing "In Stock – Ships from Hyper Warehouse" are stocked at our Auckland warehouse and are normally dispatched within 1 business day, unless a different timeframe is shown on the product listing, at checkout, or in your order confirmation.
Supplier / Logistics Warehouse
Products showing "Ships Direct from Supplier", "Ships from logistics warehouse" or similar wording are dispatched directly from one of our suppliers. These items are normally dispatched within 1 working day unless a different processing timeframe is displayed.
Specific Dispatch Timeframes
Some products require extra processing time. For example, "Logistics Warehouse – Allow approx. 2 working days before dispatch" or "Aus Stock – Dispatch in approx. 7–10 working days". Where a specific timeframe is displayed against an item, that timeframe applies.
Dispatch Time vs Delivery Time
Dispatch time is the time required for your item to leave the Hyper Ride warehouse or supplier warehouse. Courier delivery time begins after the item has been dispatched.
The dispatch timeframe shown against the individual product on the product page, at checkout, or in your order confirmation takes priority over the general timeframes on this page.
If your order contains products from more than one dispatch location, your items may be sent separately and arrive at different times. Each parcel may also have a different courier and tracking number.
Shipping Rates
| Category | Cost | Delivery | Items |
|---|---|---|---|
| Street Clothing & Footwear | $9.99 | 1–3 working days within New Zealand, plus 1–3 extra days for rural areas. | Street clothing and footwear. |
| Standard Nationwide | $14.99 | 2–3 working days within New Zealand, plus 1–3 extra days for rural areas. | Most standard-sized items. |
| Medium Items | $19.99 per item | Standard delivery timeframe applies. | Bodyboards, board bags, longboard skateboards, moto boots, and moto helmets. |
| Large Items | $29.99 per item | Standard delivery timeframe applies. | Snowboards, snowboard packages, kneeboards, wakeboards, water skis, and bikes. |
| XLarge Items | $29.99 per item | Standard delivery timeframe applies. | Inflatable stand-up paddle boards. |
Bulky Items
Surfboards, Roof Boxes & Large Bike Racks
These items require specialist transport and are sent using Bascik rather than our standard NZ Post service. Delivery can take up to 10 days depending on your location within New Zealand.
Surcharges
We recommend delivery to a non-rural town or workplace if you would like to avoid the rural surcharge.
Due to additional courier surcharges. You may prefer delivery to a friend or workplace in Auckland City.
Additional Information
Rural Delivery
Rural deliveries can take an additional 1–3 working days. Exact delivery times can vary depending on the local rural courier route and service frequency.
Signature Required
Orders are sent signature required by default. If you provide permission to leave in your shipping notes, the courier may leave the parcel without a signature where their service allows.
PO Box Delivery
Orders shipped from our Auckland warehouse via NZ Post can be delivered to PO Boxes. Supplier-direct PO Box delivery depends on the supplier's nominated courier. If required, we may contact you for a physical street address.
Shipping Days
Orders are not dispatched on weekends or public holidays. Working-day dispatch and delivery estimates exclude weekends and public holidays.
Order Changes
Once an order has been placed, we cannot guarantee cancellations or edits before dispatch. Contact us as soon as possible and we will help where we can.
Tracking
For orders shipped from our Auckland warehouse, NZ Post tracking is automatically emailed once the courier collects and scans your parcel. Supplier-direct tracking is not always supplied automatically, so please contact us if your expected dispatch timeframe has passed and you have not received tracking.
Tracking & Split Orders
Hyper Ride Warehouse Tracking
Hyper Ride warehouse orders are shipped using NZ Post. Tracking is automatically forwarded to you once NZ Post collects and scans the parcel. Tracking may not show movement until the first courier scan has taken place.
Supplier Tracking
Supplier-direct orders use the supplier's nominated courier. Tracking details are not always automatically forwarded to us or to the customer. If the dispatch timeframe shown against your product has passed, email us and we can request the tracking for you.
Orders From Multiple Locations
If your order contains products from the Hyper Ride warehouse and one or more supplier warehouses, the items may be dispatched separately and arrive on different days.
Different Couriers
Split orders may use different courier companies and have separate tracking numbers. Please check the dispatch information shown against each item in your order confirmation.
Support & Freight
Freight Companies
- NZ Post is used for standard orders dispatched from the Hyper Ride Auckland warehouse.
- Bascik is used for specialist bulky freight including surfboards, roof boxes and large bike racks.
- Urgent Couriers operates our Auckland Urgent Tonight same-day delivery service.
- Orders dispatched directly from a supplier are sent using the supplier's nominated courier.
- Supplier-direct tracking is not always sent automatically. If you need tracking after the expected dispatch timeframe has passed, please contact our customer service team.
Shipping to Australia?
For Australian shipping information, head to our dedicated Shipping AU page.
We currently offer standard shipping only for Australia. All Australian orders are first received at our Auckland HQ, where they are collated and processed for export before dispatch.
$29.99 shipping plus a 2% import fee. The fee may vary depending on the item.
Estimated delivery time is 4–6 business days from dispatch.
Orders do not ship same-day. Processing and export prep can take up to 3 business days.
There are currently no express shipping options available for Australia.
We do not ship surfboards or stand-up paddleboards to Australia. We also cannot deliver to post shops or PO Boxes — a residential or business street address is required.
Shipping Overview
| Shipping Type | Cost | Delivery | Details |
|---|---|---|---|
| Australia Standard Nationwide | $25 + 2% import fee | 4–6 business days from dispatch (estimate only). | Orders are first collated at our Auckland HQ and processed for export before dispatch. Rural and remote areas may take longer. |
How Australian Orders Work
Order Processing
Orders do not ship same-day. All Australian orders first arrive at our Auckland HQ warehouse, where they are collated and processed for export. This can take up to 3 business days before dispatch.
Multiple Items
If your order contains multiple items, we’ll collate them at our Auckland HQ and ship them together so your order arrives in full.
Remote Areas
Delivery to rural or remote parts of Australia, including WA, NT, and Far North QLD, may take longer than the standard 4–6 business day estimate.
Dispatch Schedule
Orders are dispatched Monday to Friday, 8:00am–5:00pm NZ time. Our daily processing cut-off is 3:00pm NZ time. Orders placed after this, on weekends, or on public holidays will be processed the next business day.
Tracking, Customs & Returns
Tracking Your Order
You’ll automatically receive a Team Global Express tracking link once your parcel leaves Auckland and is scanned into the carrier network.
Customs & Duty Charges
International orders may be subject to customs or import duties once they reach Australia. These charges are the responsibility of the recipient. Hyper Ride cannot control, predict, or waive these fees, and we cannot mark orders as gifts.
Returns from Australia
Returns from Australia are not free. For full returns information, including how to lodge a return, please visit our Returns page.
Need Help?
Customer Support
For help with Australian shipping, tracking, or returns, email ridesupport@hyperride.co.nz.
Quick Summary
- Standard shipping only for Australia.
- Orders are collated at Auckland HQ before export.
- Dispatch can take up to 3 business days.
- Delivery is estimated at 4–6 business days from dispatch.
- Remote areas may take longer.
