Shimano RX100 (HB-A550 / FH-A551) NOS Classic 36/36h Hubs

Shimano RX100 (HB-A550 / FH-A551) NOS Classic 36/36h HubsOriginal hubs produced in the 1990s New old stock! Still unused after all these years Worldwide shipping Shimano RX100 hubs, hailing from Japan and in production during the 1990s (yet still new & unused after all this time!). Made from aluminium steel and weighing in at 655 grams. A fine choice for keeping your classic bike authentic, but also great for any other compatible bike too. OVERVIEW Body Condition New Old Stock* Bearing Race Condition New

✓ Original hubs - produced in the 1990s
✓ New old stock! Still unused after all these years
✓ Worldwide shipping

Shimano RX100 hubs, hailing from Japan and in production during the 1990s (yet still new & unused after all this time!). Made from aluminium/steel and weighing in at 655 grams. A fine choice for keeping your classic bike authentic, but also great for any other compatible bike too.

OVERVIEW

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Body Condition - New Old Stock*
Bearing / Race Condition - New Old Stock*
Model ID - HB-A550 / FH-A551
Production Era - 1990s
Country - Japanese
Material - Aluminium / Steel
Weight - 655 g
Stock Code - D-HU-P41C

*New old stock items may have marks from storage over the years, and as we often have multiples they can vary from piece to piece, but they are always genuine new & unused items.

TECHNICAL INFO

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Spoke Drilling (F/R) - 36/36 Hole
Spacing (O.L.D.) (F/R) - 100 mm / 130 mm
Speed - 8 Speed
Sprocket Fitting - Shimano Hyperglide

▼SHIPPING, TAXES & RETURNS

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We've been safely sending orders around the world since 2010. There's a handy shipping calculator on the shopping cart page so you can see the cost of postage as soon as you've added it to your basket. Your order will be carefully packed and sent with tracking & insurance, we despatch most orders within 2-3 days but larger items and orders placed before the weekend can take an extra day or two to process.

We accept returns, please notify us within 14 days and ensure the item arrives back with us no later than 30 days after the order was received.

EU Customers – for orders under €150 (excluding shipping), VAT will be collected at checkout, but from 1st July 2026, due to new EU import regulations, there may also be a customs duty payable to the carrier. For orders over €150, all import fees will be payable to the carrier, with nothing collected at checkout.

USA Customers – import fees are now collected at checkout for all orders to the US, so there won’t be any surprise charges when your order arrives.

Other International Customers – local import fees may still apply, charged by your customs office or courier before delivery. These are not collected by us, so please check your local rates before purchasing.

Any applicable fees will appear at checkout.

▼HELP SECTION

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Spoke Drilling - the number of holes for the spokes (front/rear), your wheel rims need to match the hubs exactly.

Spacing (O.L.D.) - the width of the hubs measured at their widest point, from the outside of the locking end nuts (O.L.D. = Over Locknut Dimension), not including the hub axle. These measurements need to match the inside of your frame and fork’s dropouts. Steel frames can be stretched or squeezed a few mm but it's always best to avoid this if possible, aluminium or carbon frames should never be stretched.

Speed - the number of cogs the rear hub was designed to be used with.

Sprocket Fitting - for cassette hubs this refers to the spline pattern (the shape of the cogs where they slide on to the hub) and this must match the cassette you intend to use. With freewheel hubs it refers to the thread, ISO is the modern standard and is almost exactly the same as older English/British and Italian thread, allowing you to mix and match between these thread types as long as it's not going to be under extreme force, in which case it's best to stick to an exact match. Freewheel hubs with a French thread must be used with a French threaded freewheel.