Silverback Fat E-Bike Crankset — Built for Maximum Torque & Extreme Terrain Silverback's Fat E-Bike Alloy Crankset is a purpose-built, heavy-duty drivetrain upgrade engineered for the extreme torque, wide chainlines, and rugged conditions unique to fat e-bikes. Forged from 6061-T6 alloy with a 7075-T6 chainring, it delivers exceptional stiffness, durability, and long-term reliability — while keeping weight low at just 610 g. Engineered for Fat E-Bike Performance A reinforced Shimano STEPS-compatible interface (EP6 / EP8 / EP801 / E7000 / E6100), optimized 75.6 mm chainline, and 234 mm Q-factor ensure perfect power transfer on 197 mm rear ends. Whether you're riding snow, sand, or technical off-road trails, this crankset handles the load without compromise. Key Features Forged 6061-T6 alloy arms with CNC finishing for maximum stiffness-to-weight ratio 7075-T6 chainring — narrow/wide profile for reliable chain retention under motor torque Shimano STEPS compatible: EP6, EP8, EP801, E7000, E6100, E8000 (24 mm axle interface) Replaceable 36T / 38T chainrings on 104 BCD spider for easy customization Optional bolt-on chainguards for 36T and 38T spiders Brushed anodised grey finish with rust-proof silver hardware Silverback signature cut-out design for stiffness enhancement and visual identity Technical Specifications Category Specification Crank Length 170 mm Q-Factor 234 mm Chainline 75.6 mm (for 197 mm hub OLD) Offset 45 mm Motor Compatibility Shimano STEPS: E6100, E7000, E8000, EP6, EP8, EP801 (24 mm axle interface) Crank Arm & Spider Material Aluminium 6061-T6 (forged + CNC) Chainring Material Aluminium 7075-T6 Chainring Options 36T / 38T, 104 BCD, Narrow/Wide Chainguard Options Bolt-on ring-style guards for 36T & 38T spiders Finish Brushed anodised grey with rust-proof silver hardware Weight 610 g (arms + spider + bolts) Recommended Torque 14 Nm Intended Use Fat e-bikes (off-road, snow, adventure, utility) Frequently Asked Questions Which Shimano motors is this crankset compatible with? The Silverback Fat E-Bike Crankset is compatible with the full Shimano STEPS lineup using a 24 mm axle interface: EP6, EP8, EP801, E7000, E6100, and E8000. It is not compatible with Bosch, Brose, or other motor platforms. Can I use this crankset on a standard MTB or gravel bike? No — this crankset is specifically engineered for fat e-bikes with a 197 mm rear hub OLD and a 75.6 mm chainline. Using it on a standard MTB or gravel bike with a narrower rear end will result in incorrect chainline alignment. What chainring sizes are available? The crankset is available with either a 36T or 38T narrow/wide chainring on a 104 BCD spider. Both are replaceable, so you can swap chainring sizes as your riding demands change. Is a chainguard included? Chainguards are available as an optional bolt-on accessory for both the 36T and 38T spider configurations. They are not included in the standard package but can be added for extra chain protection in demanding conditions. What is the weight of the crankset? The complete crankset (arms + spider + bolts) weighs 610 g — a competitive weight for a heavy-duty fat e-bike component built to handle high motor torque. Is this suitable for OEM builds? Yes. The Silverback Fat E-Bike Crankset is designed with OEM and aftermarket builds in mind, offering a reliable, high-performance solution at an accessible price point with easy serviceability.
