image of Clarks CP305 Bike Brake Blocks

Item: 639997

Clarks CP305 Bike Brake Blocks


The sale price is SAVE £1.50
Was £5.49 *

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Ends Sunday 31st July

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*Excludes cycle technology, bike racks & turbo trainers

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  • Description
  • Reviews
  • Help & Advice
  • Price Match
  • Buying Options
  • Clarks CP305 Bike Brake Blocks

    Kick your braking system into gear with Clarks CP305 Bike Brake Blocks.  They’re compatible with all major calliper brake systems and take all weather conditions in their stride.

    Clarks CP305 Bike Brake Blocks Extra Info

    • 52mm
    • Shimano compatible
  • Rated 4 out of 5┬áby 7 reviewers.
    Rated 3 out of 5 by Poor wet weather performance let me first say that the price of these brake blocks at Halfords is amazing, in the dry they function perfectly well but in the wet that's another story. I use them in Planet X skeleton brakes with Shimano 105 sti levers which have phenomenal power, but the wet weather performance is really below par. I live in rural Northumberland in the north pennines and when you're not going up you're coming down and down some very fast decent indeed. I almost had my bluff called descending the Hartside Pass. My recommendation is they're fine in dry conditions but look elsewhere if you cycle in the wet. 04 June 2016
    Rated 4 out of 5 by They stop you in your tracks Really good , and got them in a 20% off sale 'which made it even better .But even at full price they are great and better than the originals . 16 May 2016
    Rated 5 out of 5 by allen key fittings besides being good stoppers like these blocks because the AK bolts have internal protected threads, so no external studs and fixing bolts to corrode 01 May 2016
    Rated 3 out of 5 by product as described. satisfactory product, does what it is should do, will purchase again. 27 November 2015
    Rated 5 out of 5 by New for a 360 mile ride Thought I would replace my slightly worn brake blocks ahead of a 360 ride. These did a great job, with a better feel and breaking than the original blocks fitted to my boardman road bike. 19 September 2015
    Rated 4 out of 5 by Good in a hurry Had my previous brakes fail suddenly and couldn't afford to wait for an online order to be sent out, so nipped out to Halfords to get a pair of these. Very easy to replace and so far have had no problems - they don't seem to have shifted at all and the bolts seem to be secure so far. Excellent purchase in hurry because being able to stop is important. 25 November 2014
    Rated 4 out of 5 by Easily fitted I bought these as replacements for the original blocks in my Tektro brakes. They are easy to fit and work well. 06 October 2014
    • 2016-07-29 T13:47:56.327-05:00
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    1-7 of 7
  • Halfords Price Match

    Here at Halfords we always want to make sure we're offering you a first class service and products at competitive prices.

    To ensure we keep our Price Promise to not be beaten on cost, we monitor the prices offered by our competitors daily and adjust our own pricing accordingly.

    So, What's Halfords Price Guarantee?

    If you find a cheaper price we'll match it, and if you find it after you've purchased from us we'll refund the difference within 7 days of receipt of your goods.

    Simply take a print out of the competitor's online price into any Halfords store, ensuring, date and price are shown and we will match the competitor price if within policy.

    Terms & Conditions

    • The competitor's item must be identical (colour, size etc)
    • The competitor's item must be in stock at the time of match
    • The competitor's price must include delivery
    • The competitors price must be publically advertised online and cannot include any membership/personal discounts
    • We cannot match bulk promotional offers such as buy one get one free
    • The competitor must be based in the UK and sell direct to customers (no auction or marketplace retailers)
    • No other promotional offers or vouchers can be used on top of a price match
    • We will match within 7 days of receipt of purchase
    • If purchased from store the match must be from a store within 20 miles radius
    • We will match in store if our online price is lower than our store price
    • We will not match against clearance, closing down sales or specialist retailers such as market stalls.
  • You can buy this product from one of our carefully selected Approved Partners. The full list of options available are below. Simply add your chosen option to your basket and proceed to checkout when you're ready.

    You can purchase products supplied by Halfords and selected other suppliers on

    Checkout is always via and all payment will be taken via In checkout the products will be split into separate deliveries for each supplier.

    Showing 1 - X of our buying options
    Price Seller Info Purchase

Some of the parts we sell here at Halfords have been reconditioned. These will carry a Refundable Deposit or an extra surcharge amount. When you add one of these reconditioned items to your basket, we'll add this extra cost automatically.

Once you've sent us your old item we'll check it over, and then refund you the full surcharge as long as everything is ok.

Before you return your old unit please make sure it's in re-serviceable condition. So if you're returning caliper casings, you'll need to double check they aren't badly damaged or broken. If the part you've sent is found to be unserviceable, we reserve the right not to refund the surcharge.

Please note that if you're returning your old unit to our National Returns Centre then this will be at your own expense.

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Clarks Bike Brakes

Clarks CP305 Bike Brake Blocks

£3.99 The Clarks CP305 Bike Brake Blocks are compatible with all major calliper brake systems.