CNC-Profiled Tooth Geometry

Every tooth profile is generated from a master CNC programme matched to ISO and ANSI chain pitch tolerances. Shift-assist ramps and pin chamfers are machined directly into the sprocket body — not added as a post-process step — so the bicycle sprocket leaving our facility carries fully integrated shift geometry. This guides the chain cleanly onto the next tooth, dramatically reducing skip and mis-shifts even under hard sprint loads or aggressive trail riding. Customers upgrading from stamped-steel alternatives consistently report quieter, more positive shifting from the first fit.

Case-Hardened Steel & 7075-T6 Aluminium

Our bicycle sprockets are produced in two primary materials, selected for each application: case-hardened carbon steel (HRC 58–62) for maximum durability in mountain bike, e-bike, and touring use; and aerospace-grade 7075-T6 aluminium for weight-critical road and gravel builds. Both material grades undergo hardness verification and full dimensional inspection before leaving our facility. This is not a catalogue compromise — it is a deliberate material engineering choice backed by 18 years of drivetrain application knowledge across competitive and commercial cycling sectors.

Full OEM Compatibility Range

Our bicycle sprocket range spans 7-speed through 12-speed cassette configurations, with tooth counts from 10T to 52T on rear sprockets and chainring equivalents from 22T to 60T. All items are manufactured to be compatible with Shimano HG, SRAM XD/XDR, and Campagnolo N3W freehub standards — giving B2B buyers a single-supplier solution across road, mountain, gravel, and e-bike product lines. This breadth of coverage means UK distributors can consolidate their sprocket sourcing without sacrificing any part of their catalogue compatibility requirements.

Corrosion-Resistant Surface Treatments

UK cycling conditions — persistent rain, road salt from November through March, and high humidity on trail surfaces — are particularly destructive to metal drivetrain components. Our steel bicycle sprockets receive black oxide + oil treatment, nickel plating, or optional hard chrome finish depending on application severity. Aluminium variants are anodised to Type II or Type III specification. Every surface treatment is validated for a minimum 200-hour salt-spray resistance, far exceeding the 48–72 hours typical of lower-tier catalogue alternatives. UK fleet operators and touring cyclists have cited corrosion performance as a primary reason for switching to our specification.

Controlled-Atmosphere Heat Treatment

Steel bicycle sprockets begin as precision-cut blanks from certified bar stock. They enter a controlled-atmosphere carburising furnace where the outer case carbon content is elevated to 0.8–1.2% over a 4–8-hour soak period, depending on the specified case depth for the application. Quenching in temperature-controlled oil prevents geometric distortion while locking in the hardness profile. A final temper at 160–180 degrees C relieves residual stress without compromising surface hardness. The result is a component with a tough, ductile core — able to absorb the impact loads of trail riding — and a wear-resistant case that keeps tooth geometry intact through thousands of kilometres of hard use. This dual-property structure is the primary reason our sprockets outlast stamped alternatives by a measurable margin in heavy-duty applications.

Two-Stage CNC Tooth Profiling

Unlike sprockets produced in bulk-form stamping presses, every bicycle sprocket we manufacture goes through a two-stage CNC operation. The first stage generates the basic tooth form to within ±0.05 mm of nominal pitch diameter. The second stage machines each individual tooth with shift-assist chamfers, side-cut reliefs, and top-chamfer geometries that guide the chain link smoothly onto the tooth root during upshifts and downshifts. This level of precision is normally reserved for OEM-grade components from the major groupset brands. Ever Power delivers it at a price point that makes commercial sense for UK wholesalers and mid-market bicycle manufacturers building annual volumes from 500 to 50,000 units per year — a product tier that is often underserved by both premium brands and budget catalogue suppliers.

7075-T6 Aluminium for Road Applications

For road and gravel bicycle applications, rotational mass is a meaningful performance variable. A 28–32 gram saving per sprocket across a full 12-speed cassette contributes to climbing performance and acceleration response. Our 7075-T6 aluminium bicycle sprockets achieve a tensile strength above 500 MPa — significantly beyond what 6061 aluminium delivers — while weighing approximately 55–60% less than equivalent steel. The harder alloy also accepts a more durable anodised coating (Type III hard anodise reaching 60–70 microns thickness), giving aluminium bicycle sprockets a wear life that approaches steel under clean road conditions. For UK competitive cycling brands and race teams seeking weight-matched custom drivetrain builds, this combination of strength and reduced mass is difficult to source elsewhere at the order quantities we support.

Road Racing & Sportive Events

UK road cycling clubs, race teams, and sportive event organisers demand sprockets that deliver clean, silent shifting under high-wattage sprint and climbing loads. Our lightweight aluminium bicycle sprockets — precision-matched to Shimano 105 and Ultegra freehub bodies — have been used on routes across the Yorkshire Dales sportive circuit, various Audax events throughout southern England, and amateur road race series from the Midlands to Scotland. Compact cassette configurations (11-28T, 11-32T) are held in rapid-delivery UK distribution stock for short lead time repeat orders. Road-specific sprocket sets are available with anodise colour options for branded team kit matching.

Trail & Enduro Mountain Biking

Mountain bike drivetrains face abuse that road systems never encounter — mud-packed teeth, rock impacts, full-suspension chassis flex, and repeated high-force chainring engagement on technical ascents. Our case-hardened steel mountain bike sprockets are engineered with increased tooth section width on the critical lower gears where chain loads peak. Wide-range cassette configurations reaching 52T are available for 1x drivetrains. UK trail centres including Glentress in the Scottish Borders, Afan Argoed in South Wales, and Cannock Chase in Staffordshire have been cited by multiple customers as regular riding environments for their Ever Power-equipped builds. The tooth hardness profile survives prolonged abrasive contact with grit and debris better than any uncoated steel we have tested against.

E-Bike & Cargo Bicycle Fleets

Electric-assisted bicycles apply torque to the drivetrain at levels that unassisted cycling never reaches. Mid-drive e-bike systems can deliver 85–120 Nm through the chainring and sprocket assembly, requiring a bicycle sprocket specification that approaches light industrial chain drive rather than conventional cassette design. Our e-bike specific sprocket line uses a heavier tooth section, reinforced spider arms, and a hardened bore interface sized for the demanding continuous-operation loads of commercial fleet use. This specification is ideal for UK last-mile logistics operators, e-cargo fleet companies, and e-bike conversion kit suppliers who need a sprocket that reliably delivers 8,000–12,000 km service life between replacements under daily commercial use.

Long-Distance Cycle Touring

Cyclists completing long-distance routes such as Land’s End to John o’ Groats (LEJOG) or the North Sea Cycle Route cannot afford a drivetrain failure in a remote location. Our touring bicycle sprockets prioritise wear longevity over minimum weight, using deep case-hardening and nickel plating that resists the road salt and coastal moisture prevalent across much of the UK touring network. We supply several UK adventure cycling equipment retailers with touring-spec cassettes designed for 8,000–12,000 km service life under fully loaded-panniers conditions. Reliability at 6,000 km into a solo route through the Scottish Highlands matters more than saving 20 grams at the point of sale — a reality that experienced touring cyclists and the retailers serving them understand well.

BMX, Trials & Single-Speed Builds

Single-speed and BMX applications demand a completely different sprocket specification. Without a derailleur to manage chain tension, the chainring and rear sprocket operate as a matched mechanical pair — and any dimensional error translates directly into chain skip or rapid wear. Our single-speed bicycle sprockets are available in 3/32″ and 1/8″ chain pitch, with rear tooth counts from 13T to 22T and front chainrings from 25T to 44T, machined as matched pairs for minimal chain line deviation from nominal. Custom engravings, non-standard anodise colours, and specific bolt-circle drilling patterns are offered for UK BMX brands and independent custom frame builders who need branded or uniquely specified components at commercially realistic quantities.

Bicycle Retail & Aftermarket Supply

Independent bicycle dealers and online cycling retailers across the UK face the practical challenge of stocking a broad range of cassette sprocket SKUs for workshop service work while managing inventory capital carefully. Ever Power’s flexible MOQ of 50 pieces per SKU, combined with standard lead times of 15–25 days, makes us a workable stock partner for UK bike shops needing reliable sprocket sourcing without committing to the 500-piece minimums typical of major brand distributors. For shops stocking multiple speed systems and compatibility variants, the ability to order smaller quantities across a wide range of SKUs significantly reduces the working capital tied up in slow-moving inventory lines.

“We’ve been sourcing bicycle cassette sprockets from Ever Power for nearly two years for our workshop stocking programme. The batch-to-batch consistency is something we hadn’t experienced from previous suppliers — tolerances are tight enough that we never need to gauge-check on receipt. Lead times are honest and reliably met, which matters enormously for our workshop scheduling and stock planning.”

“As a small UK mountain bike brand, we needed an OEM sprocket supplier willing to work on custom tooth profiles and branded anodise colours for our cassette line. Ever Power’s engineering team engaged with the project properly from day one — not just processing an order. Samples arrived within three weeks and matched our spec sheet first time. We’re now running them across our entire trail and enduro product range.”

“Our e-cargo fleet runs 8–10 hours per day, six days a week, in all the weather west Wales can produce. Drivetrain wear was a constant operational headache until we switched to Ever Power’s e-bike sprocket specification. The nickel-plated version has outlasted our previous supplier’s product by more than three times. We’ve since recommended them to two other fleet operators we know in the industry.”

Tooth Count & Profile

Any tooth count from 10T to 60T. Narrow-wide profiling for 1x drivetrain builds. Asymmetric tooth design for prioritised shift direction. We accept customer DXF or STEP files, or develop full geometry from a written specification sheet. Matched cassette sets designed as a unified product are a standard offering.

Branding & Aesthetics

Laser engraving of logos, tooth count markings, and model references. Custom anodise colours on aluminium, including RAL-matched shades for brand consistency. Partial cutout and spider-arm designs for weight reduction and visual differentiation within branded product lines. NDA available for all branded OEM development projects.

Freehub Interface & Spider

Custom spline interfaces for non-standard freehub bodies. Direct-mount chainrings for PF30, T47, and BSA bottom bracket standards. Custom bolt-circle diameters for any chainring application. Full cassette sets produced as factory-matched units for OEM bicycle assembly line integration, eliminating sorting and tolerance-matching work at the assembler’s end.

MOQ & Lead Time

Standard catalogue items: 50-piece MOQ, 15–25 day lead time. Custom specifications: 200-piece MOQ on first production run, 25–40 day lead time. Volume price tiers available from 200 to 50,000 pieces. UK-based sample review and dimensional sign-off fully supported. Repeat orders on confirmed drawings typically ship within 18 days.