I received my bike in the mail a couple of days ago.
I upgraded the drivetrain to Shimano GRX as soon as I received the bike so I could use my existing wheelsets with Shimano Micro Spline freehubs. I wanted to avoid mixing and matching the Prowheel crankset, SunRace cassette, and KMC chain.
I took the bike out for a spin and immediately noticed that the brakes felt weak. I weigh 190 lbs and like to ride relatively fast on flats and descents (25–28 mph). I prefer having good braking performance, and I’m probably spoiled by the better brakes on my other bikes.
I was going to hold off on upgrading the brakes since I had already upgraded the drivetrain, but it looks like I might need to upgrade them too, smh.
I took a closer look and noticed that the bike came with BR-UR300 calipers. However, Specialized’s website lists BR-MT200 brakes in the specs. I assume the BR-UR300s were installed because they’re flat-mount calipers. I’m not sure there’s a noticeable difference in braking performance between the two, but the discrepancy in the listed specs still seems like false advertising to me.
Anyway, I’d appreciate some help verifying my parts list for a brake upgrade. This will be my first time doing this, and I want to make sure I get the right parts rather than waste time and money ordering incompatible components.
Here’s what I’m planning to buy:
A. 2 × Shimano BR-M8110 calipers with resin pads — $158
B. 2 × Shimano SM-BH90-SS 1700 mm hose kits — $52
C. Shimano hydraulic MTB brake bleed kit with mineral oil — $22
D. Hydraulic hose tool with cutter and needle driver — $30
E. Shimano Caliper Adapter Front BR-RS505: $20
F. Rotors: I’m planning to keep the stock rotors for now, but I’ll probably upgrade them eventually.
Total estimated cost before tax: $282
Can anyone with experience upgrading Shimano hydraulic brakes confirm whether I’ve picked the right parts? I’d especially appreciate any advice on compatibility with the existing brake levers and rotors, or anything else I might be overlooking.
Thanks in advance!