Great news! Our market leading bashguard for Middleburns with removal 18t sprockets is available once again due to popular demand. As you'd expect from Heatsinkbikes, we incorporated the huge Rider wish list into a great looking, street tough and unbeatable quality product! Look no further if you want to upgrade your Middleburns for hardcore Trials use.

• The package includes everything you need to upgrade your Middleburn cranks to the optimum Trials set-up: Bashguard, 18t Sprocket & bolts. Easy to install using our Cloud9 Fitting Guide (PDF,89Kb)
  
• The only 18t Middleburns Bashguard set-up on the market with replaceable sprockets! Why buy integrated bashguards when the whole item has to be thrown away?
  
• Upgrade your cumbersome Middleburn 22t set-up to the most popular Trials gearings of 18t-15 and 18t-16, which have become a top choice for a great balance of compactness, resting stability, low weight and strength.
  
• This new bashring size also opens up Middleburn cranks to 20" riders with freewheeling rear hubs, using the ever-popular 18-12 gear ratio!
  
• Lifetime warranty against defects in materials and workmanship specifically with Trials use in mind.
  
• The full-ring bashguard is 100% CNC machined to precise tolerances from solid 6086-T6 heat treated Aluminium billet here in the UK for the best material properties and super high quality.
  
• Space created for thick 1/8" BMX chains (approx. 12mm wide) to fit with no rubbing!
  
• Fits directly onto the Middleburn crank "Sweet Torque" splines for maximum pedal response and stiffness.
  
• Stronger bolt arrangement than standard chainrings to ensure no stripped threads when used for Trials.
  
• More radial depth of material protecting the chain from obstacles than the integrated bashguards. No more chain crunching!
  
• Increased ground clearance compared to the standard Middleburn bashguard making it easier to clear obstacles.
  
• Elegant 9 dimple design gives your cranks a modern facelift whilst also saving weight in low stress regions.
  
• The edges of the external face are fully chamfered making it kind to hands.
  
• 10mm thick for the perfect balance of impact strength and weight.
  
• Hidden weight saving groove machined into the rear of the bashguard to make the design even more weight optimised without affecting its strength.
  
• Total Bashguard + sprocket + bolts weight = 192g

• Ultra tough sprocket, with front/rear mounting versatility. The 9 mounting holes allow attachment to a Heatsink Bashguard whilst the internal spline fits rear hubs.
• Top grade Chromoly steel with a hard-chromed surface finish giving a bright finish which is extremely wear resistant, and prevents corrosion.
• Deep tooth profile for secure chain retention.
• No gear changing ramps means singlespeed set-ups without fear of accidental chain sideways movement under the high torque common in trials moves.
• Its wide track width of 2.3mm, and the weight reducing holes, are two more reasons why this is an excellent sprocket for trials and hard riding use.
• Weight: 48g

• Nine M6 bolts made from Grade 10.9 Hi-tensile steel which is over 30% stronger than the Stainless Steel in normal chainring bolts.
• Nickel plated for corrosion resistance with a button head for maximum clearance.
• The heads take 4mm allen keys, a size in most Trials riders' tool boxes since it's used for the M5 bolts in 4 bolt brake mounts.
• Weight: 26g