56cm Hirame Osaka Pro c.1982 Vintage Road Bike Frame

✓ Original vintage frame - built in the 1980s
✓ Suitable for historic cycling events such as L'Eroica
✓ Thoroughly checked over & photographed in detail
✓ Worldwide shipping

Built in Japan by Kuwahara, and imported to the UK by Evian in London, Hirame were available throughout the 70s and early 80s and offered a range of high quality frames at a great value for money price. Japan was the best mass producer of bikes through the 1970s and Kuwahara produced a huge number of well built bikes for various brands and markets. Hirame frames are generally built with Ishiwata tubing and neat cast lugs, the number of braze-ons usually indicates how high up the range the bike sits.

The Osaka Pro was the top of the range frameset offered by Hirame in the early 1980s. Built from double butted Ishiwata 022 'Speed Gallant' tubing with Shimano dropouts and a neat one piece fork, the Osaka Pro was a Japanese built race frame at an affordable price. With its metallic gold paint and chromed rear end and fork it makes for a very striking bike.

If you're taking part in L'Eroica or any other vintage event, this frame is of the correct age, so you won't be disqualified for being a rule breaker!

The frame's been carefully checked by one of our mechanics to confirm the alignment's correct and there's no damage to the threads. If there are any minor issues worth noting we will do so in the overview section below. Please take a good look at the detailed photos so you can see the cosmetic condition of the frame before you buy.


Era - 1980s
Country - Japanese
Frame Material - Steel
Tubing - Ishiwata 022 Double Butted
Weight - 3.036 kg
Stock Code - U-F-R20V


Size Guide* - Medium/Large (Approx 33" Inside Leg)
Seat Tube (ctc) - 56 cm
Top Tube (ctc) - 57 cm
Head Tube - 150 mm
Chainstay Length - 41.5 cm
Wheelbase - 102 cm

*This is just a guide, not a guarantee the frame will fit as every rider is different. If you're unsure of your size we'd always recommend trying out a bike with similar frame dimensions first.


Rear Spacing - 126 mm
Front Spacing - 99 mm
Seatpost Diameter - 26.8 mm
Wheel Size - 700c/28"
Brake Fixing - External Hex Nut
Brake Drop - 50 mm
Bottom Bracket Thread - English/British/ISO Thread
Headset Thread - Standard ISO (24 TPI - British/Italian)
Headset Stack Height - 36 mm
Fork Crown Race - 27.0 mm (JIS)
Shifter Fittings - Downtube Band-On
Headtube Internal Diameter - 30.1 mm
Steerer Internal Diameter - 22.2 mm (Standard)


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 working days but larger items can often take a little longer 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.

We don't charge VAT, however, if buying from outside of the EU please remember that there may be import duties to pay upon receipt.