I’ll admit that I was quite reluctant to put a set of these giant Culprit CCSR armrests onto the lightweight aero bar setup I bolt onto my gravel bike for ultra-distance-style endurance riding. They are more than 300g heavier than the minimalist Deda setup I was already using, and so much bulkier that it almost seems silly to compare them.
But I did it, and I rode the bike with the CCSR setup. And the improvement in comfort and control with the Culprit Carbon Composite Speed Rests installed is night-and-day. So much so, that it’s much easier to spend more time on the aerobars, and I feel much more justified in having them on the gravel bike in the first place.
Culprit CCSR Carbon Composite Speed Rests aerobar upgrade

I first wrote about Culprit’s original CSR carbon armrest upgrade four years ago, and they now sell for $210 a pair. The benefits sounded solid, but many (most?) cyclists had a hard time wrapping their brain around paying so much to bolt a heavier set of armrests (CSR claimed weight of ~314g with pads) onto an aerobar setup which they probably already were generally satisfied riding.
The Culprit long arm cup concept was simple:
- Extra-long aerobar armrests spread your weight over a larger area for improved comfort
- Higher curved arm cups give you more surface to push against laterally for improved control
- More bolt-on positions allow riders to position and angle armrests in their ideal ergonomic position
- All of which result in a rider being able to stay in their most aero tuck position longer for less wind resistance
So, Culprit went back to the drawing board to figure out how to make them more affordable – and at the same time even more versatile. They settled on injection-molded carbon-reinforced composite. And were able to get the same length, shape, strength, and adjustability at just a slight weight penalty – claimed around +20g.
In fact, the new Culprit CCSR armrests have even more position adjustability (32 vs. 24 bolt holes) and even taller supporting sides to the arm cups (max 52mm height vs. 36mm).
Tech details and actual weight

The newer Culprit CCSR armrests are each 210mm long overall and 116mm wide at the widest point. They are 64mm wide at the flat spot under your forearms through the middle of the arm cups, then taper to 36mm wide closer to your wrists. The inner side of the cup is 36mm & outer side 52mm tall overall, measured from the base. The base of the cups is 8.5mm thick where they mount to your aerobar brackets, but with 4mm recessed holes so everything sits flush.
In actuality though, the real widths feel a bit narrower, side heights a bit lower, and the radii of its curves wider once you attach the cushy 12mm thick arm pads.
There’s an almost mind-boggling 32 bolt holes – for most standard 2-bolt mounting – which gives huge adjustability. And with alternately horizontal or longitudinal oversized slots, you can easily tweak their final angle with pretty much any aerobar mounting.
Culprit claims a weight of 318g for the 2 arm cups without pads or bolts – essentially the same as the original carbon version with its pads. Mine weighed a real 324g, but you aren’t going to use them without pads.

So how do they compare size-wise to something more conventional?

Why I have aero bars on a gravel bike in the first place


My setup


Review: Riding on the Culprit CCSR armrest setup is just better!

Use beyond gravel

The downsides


Culprit CCSR – Pricing, options & availability

