Reddit mentions of TRP CX9 Mini Front and Rear V-Brake Set, Red

I've used both the TRP (Tektro Racing Products) CX9's and cheap Tektro Mini V's.

TRP CX9: http://www.amazon.com/TRP-CX-9-Mini-V-Brake-Set/dp/B004C966DK/ref=sr_1_1?ie=UTF8&qid=1343829859&sr=8-1&keywords=trp+cx9

Tektro Mini-V brakes: http://www.amazon.com/Tektro-926A-L-Pull-Brake-Black/dp/B001F2USVS/ref=sr_1_3?s=sporting-goods&ie=UTF8&qid=1343829905&sr=1-3&keywords=tektro+mini+v

As far as braking performance is concerned, they both worked very well (MUCH MUCH better than cantilever brakes). As you can see there is a massive difference in price between the two brake sets. The CX9's are nicer, but I'll list the advantages I've noticed, and you can decide whether it is worth the price difference for you. Side note: Try to find some used, I got my set for $40 I think?

Advantages of the CX9's:
-Lighter (but not by much, 40 grams for the set I think?)
-Much nicer hardware (titanium hardware, and hex bolts instead of phillips)
-Stays in adjustment longer (don't have to tweak the return spring tension nearly as often)
-Better design for CX bikes (some people run into issues with the Tektros not clearing the frame when releasing the brake to change wheels)
-Cartridge-style brake pads instead of the ones where you replace the entire pad and hardware.

In general, yes, mini-v brakes will improve your braking performance, but there are compromises. Modulation is more limited than with cantis, takes some getting used to. Clearance issues, the pads will be closer to the rim, making it easier for them to get gunked up. More importantly (to me at least) is if your wheel takes a big hit and goes a little out of true, the rim will rub on the brake more easily. This can be an issue when racing, but less so for casual riding, becase you can stop to either true the wheel, or reduce cable tension to move the brake pads out and get you home.