TRP Spyke Dual piston mechanical caliper 7 months review

For maximum leverage mount the wire on the inside, as shown in this picture.

Assembly:

When attaching the housing to chainstay make sure to account for housing movement, when going through travel, I had to only use one zip hook, and use a zip tie halfway on the chainstay to avoid the linkage movement to case braking.

Pros:

  • Easy pad adjustment
  • The Spyke brakes offer one finger braking, as powerful as the Shimano m615 brake, but without the issues of leaks and impossible to get seals(without contacting Shimano).The Pad mud gives protection against stones and dirt, so stores can’t interfere the pad/piston movement, So this is a great feature.But like all brakes they only give protection for this, rotors and the inside caliper is exposed, so I still get sand &dirt in there in wet conditions, there is no way to protect the pad surface, things will get in the rotor and can get stuck and make noises, so to prevent crunchy brakes after ride, spray water on the in to the caliper, I do this in shower.
  • The pads are held in place by a threaded pin, with a clip, which makes maintenance easier.
  • Smart bolt  & pin hold the pads securely in place.

Cons:

  • With the Spyke caliper, the lever is noticeably harder to press than with hydraulics, than a hydraulic brake, due to the stiff return spring. I noticed I my fingers got fatigued from braking after an ca 4-hour ride, but I rode so hard that I could not even pull a manual. After 7 months in March 2018, I Noticed my fingers got very fatigued by braking, I think this was due to braking a lot when riding on grosery rounds between several shops, and to home, a lot of stopping for traffic and,  but I went back to hydraulic brake, and I was less fatigued.
    But I am pretty sure most people will get used to the heavier lever feel.

I found a video showing how to reduce the pull force:

I haven’t tried this, but it’s a pretty easy fix, but it will void the warranty.

  • can’t remove brake pads from the top or without removing the wheel.
  • The barrel adjuster snapped on one of the brakes, I touched accidentally hit my hand on the barrel adjuster and it just snapped off, none of the other snapped off yet. Good, I had spares brakes. but the barrel adjuster is clearly weak, it was quite soft, A crash could probably damage it snap it.

 

TRP Spyke Snapped Barrel adjuster_0001_DxO

The bolts rounded off, but the tolerances are not perfect, which is important, I used fresh park tool Allen keys, which also don’t have good tolerances, if the fit was tighter it would wear slower, but this might also be a material issue, I don’t know which alloy is used for the bolts. the bolt was loosened and tightened over 20+ times over from the end of summer of 2017 to March 2018.

 

 

Verdict:

If the spring is modified or a lighter spring is installed, but the way it comes stock, quite firm, for really long trips and causes fatigue, So I recommend these, if don’t have too weak fingers, But more you use them strong you will get, just don’t overdo it.

You really have to look after these brakes, you have to check if the pad adjustment is too loose, and add Loctite 243(or similar) if it is, which is easy to do, and does not take long to do, I check every single week, for some this might be too much hassle, for me it’s not a dealbreaker.

 

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