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Showing posts with label Carbon Cryo Blue. Show all posts
Showing posts with label Carbon Cryo Blue. Show all posts

Review: 2013 Reynolds 46 Clincher

December 2013 - I have always stuck to rims with aluminum brake surfaces as they allow me to brake as I please and as hard as I please without much thought about delamination or warping. Indeed, the internet is filled with such horror stories due to failures related to brake surface overheating.


This was until I test rode a friend’s generic 50mm carbon hoops.  I was immediately blown away by the weight... or rather, the lack of it.  After rolling on 1700 gram Shimano C50’s for the better part of the last year, riding on sub 1500 gram wheels was difference as distinguishable as night and day.  


Hill climbing became less of a chore and we went through said uphills a tad faster than normal.


That said, I still hesitated on getting a set. What if it rained? Carbon wheels are notoriously poor in stopping in the wet. What about long descents where you had to sustain constant brake pressure?  Conditions which are reported to be the cause of warping?


Pass.


One day, on a random visit to my favorite brick and mortar LBS, the Godmother herself saw me looking at some carbon hoops and gave me an offer I can’t refuse.


I went home with a pair of 11-speed compatible 2013 Reynolds 46C's.






As much as I hate to admit it, I was pretty excited to leave my alloy brake surface comfort zone and put on new wheelsets. I suppose any Cyclist would feel as giddy whenever such a new equipment scenario presented itself.


On a side note, I would have gone for a more popular and affordable offering from the Reynolds stable, but to be frank, I didn’t quite warm up the graphics on the 2013 Assaults. But subdued graphics, DT hubs and better spokes were enough, in my mind, to pay extra for the 46 C’s.  


Tech


Sporting a more traditional 21mm width and regular V-shaped cross section. The 46C does not sport the now de rigeur toroidal shape nor the 23+ mm width of its newer competitors. Be that as it may, doing so has made the 46C’s innately light without delving into exotic carbon layup territory. And for more than a few cyclists, light weight is an advantage in itself. Although based on what we would now call old tech, the 46C is not without its own aero tricks. Reynolds have incorporated their SLG (Swirl Lip Generator) technology to the inner edge of the rims. This, Reynolds claim, reduces drag on the 46C by approximately 20% at 10 deg yaw,  


The wheels came in at a listed 1440 grams, roughly the equivalent of the Shimano WH-9000-C24’s we’re so fond of. But of course the 46Cs come in a more aero-friendly 46mm depth profile. As an aero road frame user, it makes perfect sense to mount aero wheels to match. The 46C's Simple, smart graphics is always a welcome bonus.  





To address the extended braking scenarios, Reynolds integrated their CTg braking system in the 46 C. The CTg (Cryogenic Glass Transition) System is Reynolds’ patented rim-pad pairing that enables so equipped Reynolds wheels to run up to 53% cooler compared to standard carbon-pad combinations’. In effect, CTg uses different kinds of carbon laminates to transition from the brake surface to the rim itself. This creates a heat sink effect wherein the brake surface passes heat onto other areas on the rim surface where passing airflow helps dissipate the it.  


This ensures smooth and predictable braking performance and dependability. As a system, users are required to use the included Cryo Blue pads else the warranty is void.


Handling mechanical duties are DT Swiss straight pull hubs. Spokes are DT Swiss Aerolites. The front is laced radially with 20 spokes while the rear has 24 in two-cross config. This configuration, like it or not, utilizes internal nipples. While we are sure this aids with smoother airflow, it’s certain to turn some off from doing frequent DIY truing.  


For 2014, reynolds have replaced the 46 C with the 46 Aero model. This updated wheelset sports a whopping 26.2mm width with aerodynamic features similar to the current 58 Aero. Weight has grown to 1505 grams though. 

All in all we were very satisfied with the 46c's.  


On the Road


The first thing we noticed about the 46's other than weight is the stiffness.  The wheels give the impression of immediately transmitting pedal input to the road where it belongs. Spinning these wheels up from a standstill is very very easily accomplished. At speed, the wheels hold speed quite well.


We used the 46C’s with our favorite 25mm GP 4000s’ without a problem. Although this produced a pronounced ‘lightbulb effect’, we felt the immediate benefit of a smoother ride due to the reduced air pressure possible with 25mm tires.


The DT Swiss hubs are smooth and quiet. Perhaps too quiet as we frequently had to call the attention of pedestrians and fellow cyclists as we went freewheeling.


We had the chance to test braking performance on a winding 8km descent from Bugarin. We have to admit that carbon braking takes some getting used to in terms of technique. However, the change is not that far off from alloy as it involves anticipation, timely deceleration and alternating between front and rear brakes. We do miss the ability to gun the brake levers all the way down though.


Unfortunately (or perhaps fortunately) I was not able to test the brakes in the wet. Though it’s something one should prepare for, it’s not something I’m looking forward to personally.



Verdict


Not the most modern of carbon clinchers but still plenty light and stiff. A great value if you get it at a discount!


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