SONdelux | Highly efficient, faster and lower weight.
Drop-bar road and adventure bikes are designed for going fast, whereas many dynamo hubs were designed for town bikes. The rapid advancement and incredible efficiency of LED lighting compared to older halogen bulbs has meant that lights such as the Exposure Revo (available as a package with these wheels - please click here) would run at its whopping 800 lumen output at just 10mph. SON realised that by using a smaller/lighter generator, they could reduce drag by an impressive 20% and still achieve the 3 watt / 6 volt output (800 lumens on the Revo light) at just 11-12mph. Even at 10mph, you will get upwards of 500 lumens from the Exposure Revo light! The super-fast SONdelux is the result of this innovative thinking... 20% better rolling resistance and lower weight, only 395g (the SON28 weighs 430g).
5 Year Warranty (incl. Bearings)
The unique SON Pressure Compensation System allows us to offer you a huge 5-year warranty on the SON Dynamo hubs including bearing wear.
SON Pressure Compensation System
All dynamos heat slightly during operation and then cool, the cooling of air in the hub body of most dynamo hubs can cause lowering air pressure inside the hub. This lower air pressure can lead to the suction of water through the bearing seals significantly reducing the life of hub bearings. However, SON dynamos feature their unique Pressure Compensation System which consists of an airflow port on the axle cap and inside the axle (as shown below) and an air reservoir tube.
SON Dynamo Pressure Compensation Port
The SON Pressure Compensation System allows air pressure to be equalised, thus extending bearing life to a huge 50,000-100,000 kms. The tube (shown below) is long enough that water doesn't reach the end, and when the dynamo heats up again air pressure increases and any air and water is forced back out of the axle end of the tube preventing damage.
SONdelux set-up, user guides and further info - please click here
Why only suitable for 12mm and QR, not 15mm?
"We would like to offer a 15mm option on these Dynamo wheels. Dynamo wheels (whilst being able to adapt to QR with a sleeve) cannot be adapted between 12 and 15mm (unlike a normal hub) due to the hub caps needing to be fixed and cabled for the dynamo to operate, and 12mm forks will not accept a 15mm cap as they have a small ridge above the axle interface. The AdventureDynamo wheels can adapt to any other current axle standard on the market, you just need to let us know what are your requirements by filling in the simple form on the confirmation page after checkout. Of course, we are looking at 15mm as an option in the future, but it would probably need to be 6-bolt to allow the larger ball bearings; ball bearing size is very small on 15mm dynamo axles if fitted inside a centre-lock disc mount diameter and around the larger dynamo axle thickness (needs space for wire to pass through the bearing inner diameter unlike a normal 15mm hub axle).
Apologies to anyone who was hoping for a 15mm MASON x HUNT Dynamo option, it was a difficult decision to make for our first dynamo option, and we, of course, want to serve as many riders as possible. I hope this explains it a bit more, we would love to offer an option for you soon. Obviously, since drop bar disc brake bikes are now becoming more stable in their standards hopefully these things will be simpler in future, here's hoping as it would probably make all our lives easier as riders. Thanks again and enjoy your riding, Tom Marchment (Hunt Bike Wheels | TheRiderFirm)
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Exposure Lights tried, tested and much loved dynamo powered light. Providing up to 800 lumens of power that is only limited by your endurance, it is the new must have for adventure riding, touring and commuting. Plus it's manufactured just down the road from us here in Sussex, UK.
The Exposure Revo Dynamo light weighs a feathery 110g as it needs no battery, so as a package the light and hub weigh much the same as a normal hub and battery powered light, without that "oh, my lights run out of charge... I can't ride" nightmare.
Up to 1 hour of light even when your bike is stopped!
Stand Light Technology | When you stop, the Revo’s Stand Light provides ten minutes of light at 400 lumens running for up to an hour at a diminishing level. The retained energy allows you to quickly get up to full power when you start cycling again or get your tent up for a night in the wilderness.
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