SPECIFICATIONS
NAME: 6903-2RS / 61903-2RS
OUTER DIAMETER: 30mm
INNER DIAMETER: 17mm
HEIGHT: 7mm
Black Bearing radial bearings are machined and assembled to precise tolerances. They are offered in four material/build options to suit a broad range of applications at any budget.
These bearings are best suited to components that undergo continuous rotation - think hubs, bottom brackets, or any part that spins. While they can be used in suspension pivots, the full-complement MAX versions are best suited to this application for optimum load management and longevity.
B3 - CHROME STEEL
B3 bearings are ABEC-3 grade and deliver reliable performance at a sharp price. The quality is comparable to the bearings that are typically specified as original equipment (OE) from many component manufacturers.
- Chrome steel balls - SAE52100 - ABEC-3
- Chrome steel races - SAE52100
- Chrome steel cage
- 2RS seals provide water and dust resistance
- Premium quality grease
B5 - PREMIUM CHROME STEEL
B5 Bearings are ABEC-5 grade. They will upgrade the performance of many stock bearings, rolling faster and smoother with exceptional durability.
- Chrome steel balls - SAE52100 - ABEC-5
- Steel races - SAE52100 - with optmized internal design
- Chrome steel cage
- Reinforced 2RS seals for improved water and dust resistance
- Premium quality grease
B5 STAINLESS - STAINLESS STEEL
The bearing of choice for use in wet conditions. B5 Stainless bearings are highly corrosion-resistant, maintaining consistently smooth and fast performance under challenging conditions.
- Stainless steel balls - KS440 - ABEC-5
- Stainless steel races - KS440 - with optmized internal design
- Steel cage - AISI-304
- Reinforced 2RS seals for improved water and dust resistance
- Premium quality grease
CERAMIC HYBRID
Upgrade to Black Bearing Ceramic Hybrid bearings for ultimate performance. Premium silicon nitride balls have incredible durability and smoothness. These are precisely assembled into an ultra-low friction bearing unit optimised for competition and premium performance.
- Silicon nitride balls - SI3N4
- Steel SAE52100 / Stainless steel KS440 races with optmized internal design
- Polyamide cage with low friction
- 2RS low-friction seals for fast rolling while providing water and dust resistance
- Premium quality grease
BLACK BEARING
Black Bearing is known for precision-engineered cycling components that enhance performance, durability, and smoothness on every ride. Their high-quality product range includes ceramic and steel bearings, bottom brackets, and wheel kits designed for road, mountain, and e-bikes. Whether you're upgrading your drivetrain or seeking more efficient power transfer, Black Bearing offers the reliability and quality serious cyclists demand. Shop Black Bearing bottom brackets and bearing kits from Hyper Ride with fast and reliable delivery.Aucklander's Same Day Delivery
- Live in Auckland? Get your order today with our Urgent Tonight Service.
- Cost: $19.99 (Excludes Surfboards. Surfboards go in a Van and are charged at completely different rate).
- Eligibility: Check your address here.
- Order Deadline: 2.30pm (Monday to Friday, excluding public holidays).
Here is an example of an item available for Urgent Tonight delivery Example note the Urgent banner on the right hand side
General Shipping Information
Please note that we do not deliver to PO boxes, Great Barrier Island, or the Chatham Islands.
Street Clothing and Footwear
- Cost: $9.99
- Delivery: 1-3 working days within New Zealand, plus 1-3 extra days for rural areas.
Standard Nationwide
- Cost: $14.99
- Delivery: 2-3 working days within New Zealand, plus 1-3 extra days for rural areas.
- Exceptions: Surfboards, Soft Top Surfboards, Wakeboards, Waterskis, SUPs, and Bikes.
Larger Items
- Medium: $19.99 per item (Bodyboards, Board Bags, Longboard Skateboards, Moto Boots, and Moto Helmets).
- Large: $29.99 per item (Snowboards, Snowboard Packages, Kneeboards, Wakeboards, Water Skis, and Bikes).
- XLarge: $29.99 per item (Inflatable Stand-Up Paddle Boards).
Auckland Central - Urgent Tonight
- Cost: $19.99 (Excludes Surfboards)
- Delivery: Orders placed between 8am-2.30pm will be delivered between 6pm-9pm on the same day.
- Area Coverage: Auckland Metro area, check your eligibility here.
- Availability: Monday to Friday.
Bulky Items (Surfboards, Roof Boxes, Large Bike Racks)
- Delivery Time: Up to 10 days based on location within New Zealand.
- Cost: Auckland $29, Rest of the North Island $69, South Island $99.
- Note: Surfboards, Roof Boxes, and Large Bike Racks require special transport arrangements.
Rural Delivery Surcharge
- Surcharge: $9.99 for any rural delivery.
- Note: We recommend delivery to a non-rural town or workplace to avoid this surcharge.
Waiheke Island Delivery Surcharge
- Surcharge: $30 due to high courier surcharges.
- Recommendation: Consider delivering to a friend in Auckland City who can bring it out.
Additional Information
- Rural Delivery Information: Please be aware that delivery times for rural areas may vary based on the frequency of service in your specific location. Rural couriers may visit some areas once a week. To ensure accurate delivery information for your rural address, we recommend contacting your local rural courier service.
- Order Cancellations: We cannot process cancellations/Edits once an order is placed.
- Shipping Times: No weekend or public holiday shipments.
- Tracking: Email us at ridesupport@hyper.co.nz for your tracking number.
- Contact Us: Phone Support: 0800 855 788, Email: ridesupport@hyper.co.nz
Freight Companies
- Post Haste and Mainfreight for most shipments. Track your order at:
- Post Haste
- Mainfreight for bulky items.
Australia
- For shipping information on Australian orders, click here.
Please note that we do not ship surfboards or stand-up paddleboards to Australia.
Also we do not deliver to post shops and post office boxes. We require a physical business or residential delivery address.
Australia Standard Nationwide
- Cost: $19.99 + 2% import fee (may differ based on the item).
- Delivery Time: 4-6 business days. (please note this is an estimate)
At Hyper Ride, we are committed to delivering your order as swiftly as possible. All our Australian shipments are handled by Team Global Express.
Shipping Schedule
All products are dispatched during normal business hours (Monday to Friday, 8 am to 5 pm). Please note that our daily order cutoff time is 3 PM NZ time. Orders placed outside of business hours, during public holidays, and on weekends will be processed on the next business day, as courier companies do not operate during those times.
Tracking Your Order
Once your parcel is scanned by Team Global Express, you will automatically receive a tracking link at the email address you provided with your order. To track your shipment with Team Global Express, please visit https://www.myteamge.com/
Customs and Duty Charges
For international orders, it's essential to be aware of potential customs or import duties. These charges are applied when the parcel reaches its destination country and are the responsibility of the recipient. Hyper Ride has no control over these fees and cannot predict their amount. We cannot be held responsible for any additional charges incurred, nor can we accept a return in such cases. As an established and ethical business, we do not engage in illegal practices such as marking international orders as gifts to bypass or reduce customs fees.
If you have any questions or need assistance, please contact our support team at ridesupport@hyper.co.nz.
