Crankbrothers Stamp 7 vs Shimano XT PD-M8140: Spec-by-Spec Comparison

Crankbrothers Stamp 7 and Shimano XT PD-M8140 are two of the pedals that riders most often weigh against each other when choosing pedals. They overlap on paper, but the details that separate them show up in price, weight, setup and long-term ownership. This comparison uses the specifications and ratings recorded in the Gear Matrix database.

At a glance Crankbrothers Stamp 7 (Crankbrothers): £112, 0.40 kg, rated 4.7, compatibility Standard 9/16 thread. Shimano XT PD-M8140 (Shimano): £90, 0.42 kg, rated 4.6, compatibility Standard thread.

Price and weight Crankbrothers Stamp 7 costs £22 more than Shimano XT PD-M8140, and is 0.02 kg lighter.

Where Crankbrothers Stamp 7 stands out Crankbrothers Stamp 7 leans on large platform, pins, low profile. It is aimed at trail riding. The trade-off to weigh: needs service.

Where Shimano XT PD-M8140 stands out Shimano XT PD-M8140 leans on wide, SPD, reliable. It is aimed at trail riding. The trade-off to weigh: moderate.

Fitment and setup Platform size, pin height and bearing quality decide how secure a pedal feels in rough terrain. Use the correct spindle threads on each crank, grease them on installation and replace worn pins or cleats before they cause slipping. In this pairing, Crankbrothers Stamp 7 lists Standard 9/16 thread, while Shimano XT PD-M8140 lists Standard thread; confirm which matches your bike before buying.

Which rider suits which pedal Choose Crankbrothers Stamp 7 or Shimano XT PD-M8140 according to how you ride rather than the label on the box. Technical trail riders, enduro racers and cross-country riders all prioritise different things, so match the pedal to your terrain and technique.

Platform and grip A pedal's platform size, pin layout and concavity decide how secure your foot feels on rough ground. Compare the dimensions and traction of Crankbrothers Stamp 7 and Shimano XT PD-M8140, and think about whether you prefer a flat or clip-in setup for your riding.

Bearings, bushings and servicing Pedals take a beating from rocks, water and dirt. Check how each pedal is sealed and how easy it is to service the bearings and replace pins or cleats. Regular servicing keeps either pedal feeling smooth.

Shoes and compatibility Your shoes matter as much as the pedal. Flat pedals work best with a sticky rubber sole and a stiff midsole, while clip-in pedals need compatible cleats and shoes. Make sure the system you choose works with the footwear you own or plan to buy.

Keeping the comparison fair The figures in this comparison come from the specifications and ratings recorded in the Gear Matrix database, so Crankbrothers Stamp 7 and Shimano XT PD-M8140 are judged against the same fields. Manufacturers revise specifications between model years, so confirm the details for the exact version you are buying before you place an order.

Price in context Price is only the start of the cost of ownership. Fitting, setup, consumables and compatibility upgrades can all add to the sticker price of Crankbrothers Stamp 7 or Shimano XT PD-M8140, and a cheaper option that needs an adapter, a new part or professional installation may end up costing more than a pricier one that fits straight away. Add up the whole bill before deciding.

Verdict Crankbrothers Stamp 7 edges ahead on rating (4.7 against 4.6), but the gap is small and Shimano XT PD-M8140 may still be the better buy if its price, compatibility or strengths suit you.

Also consider

• Shimano XT PD-M8120 (Shimano): £82, rated 4.6. Clipless pedal with a platform.
• Crankbrothers Mallet E (Crankbrothers): £134, rated 4.6. Clipless pedal with platform.