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TRP Flat Mount Rear Caliper Mounting Bolt

TRP Flat Mount Rear Caliper Mounting Bolt

5(2 ratings)

Best price now

$2.99at Cambria BikeChecked 1 h ago

Compared across 12 stores. Prices are checked against each store and labelled with when.

Visit Cambria Bike

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Price facts

  • Best price today: $2.99 at Cambria Bike (checked Nov 12, 2026).
  • Checked at 12 stores.

Our take on the TRP Flat Mount Rear Caliper Mounting Bolt

These are TRP's replacement mounting bolts for flat mount rear brake calipers. They are M5 bolts sold as a pair, in black, with a 27mm, 32mm or 37mm length to match the frame's mounting thickness. They are a small hardware part, not a brake upgrade: the choice that matters is length, which depends on the frame and adapter, and the bolts are otherwise standard flat mount hardware. Buyers needing a spare or replacement pair for a TRP flat mount rear caliper get exactly that, with no extras in the box.

Best forReplacing lost or damaged flat mount rear caliper boltsBuilding up a frame with a flat mount rear brakeKeeping a spare pair of M5 caliper bolts on hand
Pros
  • Sold as a pair, so both rear caliper bolts come together
  • Three lengths cover common frame and adapter thicknesses
  • Standard M5 flat mount thread
  • Black finish matches most calipers and frames
Cons
  • Only bolts included, no washers or instructions
  • Length must be matched to the frame, and the wrong one will not fit
  • Not a universal fit for post mount or other caliper standards

TRP Flat Mount Rear Caliper Mounting Bolt prices at every store

  • Cambria BikeNew

    In stockReturn policy

    $2.99Checked 1 h ago
    Visit Cambria Bike
  • Planet CycleryNew

    In stockReturn policy

    $2.99Checked 1 h ago
    Visit Planet Cyclery
  • Bickel's Cycling & FitnessNew

    In stock

    $3.49Checked 1 h ago
    Visit Bickel's Cycling & Fitness
  • Performance BicycleNew

    In stock

    $3.49+ $4.99 shippingChecked 1 h ago
    Visit Performance Bicycle
  • Modern BikeNew

    In stock

    $3.49+ $8.99 shippingChecked 1 h ago
    Visit Modern Bike
  • Colorado CyclistNew

    In stock

    $3.49+ $9.95 shippingChecked 1 h ago
    Visit Colorado Cyclist
  • Merlin CyclesNew

    In stockShips from abroad · duties may apply · made for another market

    $2.24+ $33.75 shippingChecked 1 h ago
    Visit Merlin Cycles
  • UC CycleryNew

    Availability unknown

    $3.49Checked 1 h ago
    Visit UC Cyclery
  • Newbury Park Bike ShopNew

    Availability unknown

    $3.49Checked 1 h ago
    Visit Newbury Park Bike Shop
  • booniesbikes.comNew

    Availability unknown

    $3.49Checked 1 h ago
    Visit booniesbikes.com
  • Yawp CycleryNew

    Availability unknown

    $3.49Checked 1 h ago
    Visit Yawp Cyclery
  • Northwest BikeNew

    Availability unknown

    $3.49Checked 1 h ago
    Visit Northwest Bike

Also available at

  • Bike MartCheck price at Bike Mart

TRP Flat Mount Rear Caliper Mounting Bolt price history

Lowest price we've seen: $2.24 on Nov 12 at Merlin Cycles. Tracked across 10 stores since Nov 12.

About the TRP Flat Mount Rear Caliper Mounting Bolt

This is a TRP mounting bolt set for flat mount rear calipers. It uses M5 flat mount bolts.

Each package includes 2 bolts, sold as a pair.

Type
M5 flat mount bolts
Fits
Flat mount rear calipers
Length
27mm, 32mm, 37mm
Color
Black
Package
Pair
In the box
2 bolts

Questions and answers

Which length do I need?
It depends on the frame's rear flat mount thickness and whether an adapter is used. Measure the stack the bolt must pass through and pick the 27mm, 32mm or 37mm bolt that leaves enough thread engagement.
How many bolts come in the pack?
Two. The pack is a pair of M5 flat mount bolts.
Do these fit any flat mount caliper?
They are M5 flat mount bolts intended for TRP flat mount rear calipers. Check your caliper's bolt spec before fitting them to another brand.
Are washers or spacers included?
No. The pack contains the two bolts only.
Can I use them on a front caliper?
They are listed for rear flat mount calipers. Front mounting often needs a different length, so confirm the required length before using them there.
Where is the TRP Flat Mount Rear Caliper Mounting Bolt cheapest?
At Cambria Bike, for $2.99, as of our latest check.
What do buyers say about the TRP Flat Mount Rear Caliper Mounting Bolt?
Rated 5 out of 5 from 2 ratings.
Where can I buy the TRP Flat Mount Rear Caliper Mounting Bolt?
13 stores we checked sell it, including Cambria Bike, Planet Cyclery, Bickel's Cycling & Fitness, Merlin Cycles, Performance Bicycle.

Stores we've priced the TRP Flat Mount Rear Caliper Mounting Bolt at

  • Performance Bicycle deals and prices

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