SKU: Product Code: GSWR-705-IGRN
G-Sport Birdcage Rim Limited Edition Ice Green
G-Sport Birdcage Rim Limited Edition Ice Green
Another classic limited edition no-longer-available rim colour re-issued - this time it is the G-Sport Birdcage, originally released back in 2012.
NOTE: Price is for ONE rim
Lightweight Structure
At first glance the Birdcage looks like a fairly conventional “aero” style rim, but there is more to it than that. The first clue comes from the name; birds have hollow bones to save weight whilst retaining as much strength as possible, and the Birdcage rim has a hollow bead for the same reason. The rim’s hollow bead is still big and chunky to help reduce the chances of pinch puncturing or flat spotting the rim, but by creating a tiny hollow cavity inside it, GSport was able to to keep the weight down and make the Birdcage their lightest rim available.
Cross-Lacing Strength
The next innovation was to adapt GSport's cross-lacing design to the narrow inner wall of the rim. GSport managed to squeeze a few extra millimetres of spoke offset out of the design to help increase lateral wheel strength, and by carefully tailoring the rim’s cross-section, they managed to match all the angles to the nipple so that the walls of the rim section act like the ribs inside the Ribcage rim, which helps to support the spoke nipples as much as possible.
Re‑designed Valve Core
Traditionally, the greatest flaw in “aero” rims has been the valve hole. “Aero” rims position a lot of very efficiently utilised mass in the base of the rim to support the spokes and give the rim good strength, then a huge hole is drilled through it for the valve stem and a massive weak-spot is created. With the Birdcage, they've offset the valve hole so that this section can retain its strength. A handy side-effect of this is that fitting a pump is now more convenient.
Easy tyre installation and brake pad compatible
Aside from these original features, GSport spent a lot of time “sweating the small stuff”. They've ensured that the deep centre allows for easy tyre removal and fitting, and we’ve made sure that the sidewalls, while slimmed down, are still suitable for brake use.
Most high tech rim to date
The end result is one of the most high tech rims to date. With a weight of just 440g (15.5oz) it outperforms most rims weighing 20-30% more, and the weight saving from the rotational mass of the wheel feels fantastic.
TECHNICAL SPECIFICATIONS
Sizes: 20" only
Drillings: 36 hole
Weight: 440g / 15.5oz
Width: 34mm
Height: 21mm
ERD: 383mm
U.S. Patent 7,427,112
FAQS
Need some help? Check some of our most frequently asked questions
What are the delivery times?
We offer multiple shipping options for UK customers including Royal Mail Tracked 48/24 services, APC Overnite and Saturday delivery. You can find these at checkout.
For international customers shipping times may vary depending on location and the size of your order but are usually 2-5 working days worldwide. You can get shipping prices at checkout including taxes and duties automatically after adding your shipping address for a total landed cost of your order. For full shipping information please check here: https://alansbmx.com/pages/delivery
Do the bikes arrive pre-built or will they need to be assembled?
Bikes arrive in a flatpack state and require the Handlebars, Seat, Pedals, Accessories and adjustment by a qualified cycle mechanic for the warranty to be valid. We do offer our Ready2Ride service where we build the bike here at the shop from our mechanics, adjust everything and keep your warranty intact, all you need to do is turn the bars straight and attach the pedals and you are ready to shred! There is an additional cost due to the oversize box and you can find this as an option on the product page for bikes 20 inch or smaller or contact us.
Do you ship worldwide?
We ship worldwide and offer shipping to many countries including USA, Canada, Australia, Germany, France, Netherlands, New Zealand, Singapore, Japan and many many more
Shipping is calculated at checkout along with customs and duties once you put your delivery address in for smooth and fast delivery via DHL.
Dont see your country as an option? Get in touch on sales@alansbmx.com.
Do you offer finance?
We offer finance options at checkout for our customers from multiple providers including Klarna, Shop Pay, PayPal and V12 Finance ( V12 is for UK Customers only).