Rene Herse Decaleur for RH Aluminum Stem
A decaleur custom-made for the Rene Herse Aluminum Stem. The plate that attaches to the stem is shaped to interlock with the stem. A decaleur attaches your handlebar bag securely, so it does not move around as you ride, yet it’s easy to remove when you lock up your bike to go into a shop, visit a cathedral or check into a control at Paris-Brest-Paris. The decaleur also keeps the bag clear of the handlebars, so you can use the hand position ‘on the tops.’ (The decaleur does not replace a rack. The bag needs to be supported securely from below.)
Decaleurs are deceptively simple, but they have to stabilize a large and sometimes heavy bag that vibrates, especially on rough roads. We’ve seen a lot of decaleurs fail. Others accidentally release their bags when the road gets bumpy. The Rene Herse decaleur attaches to the stem for optimum support, and it incorporates a locking mechanism developed by H. Hirose to keep the bag secure no matter how rough the terrain.
To release the bag from the bike, push and hold the button and pull the bag upward. Attach the shoulder strap, and you are ready to go. Installing the bag is equally simple: Slide the rear strap over the backstop of your rack. Insert the two pins on the bag attachment into the tubes on the stem mount, press the button and slide the bag downward. Once the bag is in place, release the button to lock the bag. No other attachments are needed, yet the bag is held securely.
The decaleur consists of two parts: One attaches to the stem, the other to the bag. Pins on the bag attachment slide into the tubes on the stem attachment with a precise fit. Stem not included.
Important: This decaleur fits only Rene Herse Aluminum Stems. Rene Herse decaleurs are also available in versions for Nitto Pearl (NP), Technomic and similar stems and for Rene Herse 1 1/8″ steel stems.
Pro Tip: This decaleur can be adapted to the stems of classic René Herse bikes by filing the plate for the narrower bolt spacing of classic René Herse stems (usually 15 mm).
- Technical Specs
- Design licensed from C.S. Hirose
- Spacing of stem bolts: 16 mm (c-c)
- Spacing of vertical prongs on bag mount: 40 mm (c-c)
- Spacing of holes for bag attachment: 200 mm center to center
- Weight: Stem attachment: 39 g; bag attachment: 78 g; bolts: 4 g
- Made in Japan
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