Wholesale Bicycle Drivetrain Suppliers: drivetrain parts your workshop actually orders, in stock when you need them.
Wholesale drivetrain components for bike shops worldwide. Cassettes, chains, derailleurs, cranksets, shifters, and bottom brackets across road and MTB compatibility. Brand-name resale and Ryden-branded private-label options. From 50 units per SKU.
- Road + MTB
- 8 to 12-speed compatibility
- Brand resale + private label
- From 50 units per SKU
What we supply.
Six sub-categories covering the parts your workshop replaces most often, plus the parts you sell as upgrade items. We’ve kept SKU breadth tight at launch (common speed counts and the brand ecosystems most shops genuinely service) rather than thin-stocking every niche variant.
Cassettes and freewheels
8 / 9 / 10 / 11 / 12-speed cassettes · Shimano HG, Shimano Microspline, SRAM XD/XDR, and Campagnolo freehub standards · Common ratios 11-28 through 11-50
Freewheels for 6, 7, and 8-speed legacy applications. Every SKU names the freehub standard and speed count so your parts manager confirms fit before the box arrives.
Chains
8 through 12-speed chains · Shimano, SRAM, KMC, and Connex compatibility · Hollow-pin on higher trim, standard pin on workshop-grade · Quick-link masterlinks supplied
Largely cross-compatible at the same speed count with the brand-specific exceptions (SRAM Flat-Top for 12-speed AXS road) named at the SKU level.
Derailleurs
Front and rear derailleurs · Road and MTB across 8 through 12-speed · Mechanical only at launch · Cable-pull ratio matched to the shifter ecosystem
Electronic drivetrains (Di2, eTap AXS, EPS) outside launch scope. Mechanical derailleurs SKU-named for cable-pull standard (Shimano road, Shimano Dyna-Sys, SRAM) so they pair correctly.
Cranksets and chainrings
Single, double, and triple cranksets · Road and MTB · BCD specified per SKU (road 110mm/130mm, MTB direct-mount and generation-specific BCDs) · Replacement chainrings sold separately
Chainline specified per SKU so the buyer matches it to the crankset they’re servicing. Chainring tooth counts confirmed per quote.
Shifters
Mechanical road STI-style integrated brake-lever shifters · MTB trigger and grip-shift · 8 through 12-speed · Cable-pull ratios matched to derailleur ecosystem
Cable-pull ratio is the defining compatibility variable on shifters. Each SKU named for the derailleur ecosystem it pairs with.
Bottom brackets
Threaded BSA and Italian · Press-fit PF30, BB86, BB92, T47, and additional standards on request · Sealed cartridge bearings throughout
Bottom bracket standard is frame-specific; each SKU names its standard so the workshop confirms against the frame before ordering.
A supplier that knows drivetrain compatibility is the whole game.
Ecosystem compatibility named on every SKU
Every drivetrain SKU on our catalog names the brand ecosystem (Shimano HG, Shimano Microspline, SRAM XD/XDR, Campagnolo, KMC, or other), the speed count, and the compatibility notes that matter (cable-pull ratio, hanger standard, freehub spline). A workshop manager shouldn't have to email to ask whether a derailleur fits a specific bike.
Wholesale pricing that protects workshop margin
Direct-from-supplier wholesale pricing on the parts that drive workshop reorder revenue. Tier pricing improves as your volume grows.
Brand resale + your-brand private label
Brand-name components (where our supplier agreements permit wholesale resale) supplied alongside our Ryden-branded drivetrain range. The brand-name parts give your service department what customers ask for by name; the Ryden range gives you margin headroom and a private-label offer for your shop's flagship builds.
Fast reorder turnaround for service stock
Drivetrain reorders are typically smaller and more frequent than bike orders. A workshop runs out of 11-speed chains on a Tuesday and needs them by the following Monday. We stock standard reorder SKUs for around 2 weeks dispatch for stock catalog items and longer-lead items quoted honestly per SKU.
Your brand on the parts your workshop fits every day.
A private-label drivetrain range gives your shop two commercial advantages over reselling brand-name parts only. First, margin: branded chains, cassettes, and chainrings carry margin a workshop can’t extract from resale parts. Second, customer retention: a customer who’s had your shop’s branded chainring fitted twice is harder to lose to the box-store competitor offering Shimano at 5% under your price.
We extend private label across chains, cassettes, chainrings, cranksets, and derailleurs at 200 units per SKU, with 3 weeks to first sample and 2–3 months from sample approval. Shifters and bottom brackets are technical enough that private label isn’t viable at launch volumes; we’ll flag that honestly if you ask rather than overpromise.
Enquire about private-label drivetrainDrivetrain specs that matter at the quote stage.
Drivetrain is the cycling component category where “compatibility” isn’t a feature, it’s the whole product. The wrong cassette, chain, or derailleur for an ecosystem doesn’t just underperform, it doesn’t function. Our SKUs name the specifications that determine fit, so your workshop’s parts manager can confirm compatibility before placing the order rather than after.
Speed count
8, 9, 10, 11, and 12-speedcomponents across the range. Each SKU specifies its speed count, because chains, cassettes, derailleurs, and shifters from different speed counts are not interchangeable. 11-speed and 12-speed in particular are tight tolerances; mixing across speed counts on a single drivetrain creates shifting problems that aren’t repairable.
Brand ecosystem
Shimano HG (the standard freehub for most Shimano cassettes through 11-speed), Shimano Microspline (Shimano’s 12-speed MTB freehub), SRAM XD and XDR (SRAM’s 11 and 12-speed freehubs), and Campagnolo(Campagnolo’s freehub standard for their cassettes). The freehub on the wheel determines which cassettes fit; the chain and derailleur ecosystem determine which shifters work. Each SKU on our catalog names the ecosystem it’s built for.
Cable-pull ratio
Mechanical derailleurs and shifters work because the cable pull on the shifter matches the cable pull required by the derailleur. Shimano road, Shimano MTB (post-Dyna-Sys), and SRAMeach use different cable-pull ratios that aren’t interchangeable across brands. The SKUs name the cable-pull ratio standard so your workshop knows which shifter pairs with which derailleur before the box arrives.
Hanger standard
Derailleur hangers attach the rear derailleur to the frame; they’re frame-specific and break in crashes. We stock replacement hangers for the most common frame standards, named by [Wheels Manufacturing hanger reference numbering]. Hangers are a small-margin high-attachment-rate item; a workshop that doesn’t carry them sends customers to the competitor that does.
Chainring BCD and chainline
Cranksets and replacement chainrings specify bolt circle diameter (BCD) and intended chainline. Common road BCDs are 110mm and 130mm; MTB direct-mount and various BCDs depending on crankset generation. Each SKU names its BCD and chainline so the buyer matches it to the crankset they’re servicing.
Bottom bracket standards
Threaded BSA (the most common standard), Italian (a narrower threaded standard on some Italian-made frames), and press-fit standards (PF30, BB86, BB92, T47, and others) depending on the frame the workshop is servicing. Each bottom bracket SKU specifies its standard.
Electronic shifting groupsets (Shimano Di2, SRAM eTap AXS, Campagnolo EPS) aren’t in our wholesale catalog at launch. Electronic drivetrain components require ecosystem-specific software updates, battery management, and direct service relationships with the brand that don’t fit a third-party wholesale model at launch volumes. Single-speed and fixed-gear drivetrain components are also outside launch scope, a separate enthusiast category we’d rather build properly when we move into it. Internal gear hubs(Shimano Alfine, Rohloff, Sturmey-Archer) are outside scope at launch because they’re a different product category with different service requirements.
Drivetrain ships like parts, gets fitted like specialist work.
Freight is the lowest per-SKU of any wholesale category we supply
Drivetrain components are dense and small relative to bike freight. A cassette weighs more than a saddle but takes up a fraction of the box volume. Per-SKU freight is the lowest of any wholesale category we supply, and small-volume reorders can move by parcel courier rather than pallet for fast turnaround. International freight from the origin port is quoted per shipment alongside your initial quote. For workshops setting up ongoing service inventory, we can quote standing-order arrangements at agreed reorder intervals.
Packing comes in retail-ready or workshop-ready tiers, your choice
Parts ship in retail-ready packaging where they're sold through to end customers (chains in branded boxes, cassettes in blister packs or boxes depending on the SKU), or in workshop-ready bulk packaging where the workshop fits them directly to bikes. Quote stage confirms which packaging tier you need; the choice affects unit cost and how your shop displays or stocks the part.
Tool requirements named at the SKU level
Drivetrain components fit standard workshop tooling for the most part. Where a specific tool is required (12-speed chain quick-link pliers for some chain standards, freehub-specific cassette tools for SRAM XD versus Shimano HG), we name the tool in the SKU notes so your workshop doesn't discover the requirement at fit time. For workshops without a specific tool, our tools and workshop wholesale range carries what fits our drivetrain SKUs.
Tell us what your shop needs.
We’ll come back within 2 business dayswith honest numbers: unit cost at your volume, MOQ per SKU, lead time, freight estimate to your location, and compatibility confirmation for the ecosystems you’re targeting.
From quote to delivery.
- 1
You enquire
Quote request submitted with your shop type, sub-categories of interest, brand ecosystems serviced, and speed counts you stock.
- 2
We reply with real numbers
Within 2 business days: unit cost at your volume, MOQ per SKU, lead time, freight estimate, and compatibility confirmation across the ecosystems you specified.
- 3
Sample if private label or first stocking
Approve physical samples before any full production for private label, or sample SKUs from the catalog if you’re stocking a new ecosystem. Nothing goes to a full run until you sign off.
- 4
Order, deposit, production or pick
Order confirmed. For stock catalog items, dispatch from our the origin port warehouse on agreed schedule. For private label, production scheduled with confirmed delivery window. Mixed orders see both lead times in your reply honestly.
- 5
Freight, customs, delivery
Shipped on agreed Incoterms. Documentation supplied for your customs clearance. Parcel courier for small reorders, pallet or container for bulk.
What buyers actually ask.
Do you supply Shimano, SRAM, and Campagnolo branded parts as wholesale resale?
[We supply Ryden-branded drivetrain alongside selected brand-name resale where our supplier agreements permit; specific brand availability confirmed per market in your quote, since wholesale resale rights vary by region and distributor agreement.]
What speed counts do you supply?
8, 9, 10, 11, and 12-speed components across cassettes, chains, derailleurs, and shifters. Confirmed per SKU which ecosystems are available at each speed count.
Do you supply Shimano Microspline or SRAM XD/XDR cassettes?
Yes for both, in the cassette ratios our supplier base carries. Microspline is Shimano’s 12-speed MTB freehub standard; XD and XDR are SRAM’s 11 and 12-speed freehub standards. Specific cassette ratios are confirmed per quote. The workshop reorder SKUs (most-common 11-50 and 10-50 MTB ratios) carry through, and rarer ratios may sit on longer lead times.
What’s the difference between Shimano HG and the newer freehub standards?
Shimano HG is the standard freehub used by most Shimano cassettes through 11-speed and remains the most common standard a workshop services. Shimano Microspline appeared for 12-speed MTB; SRAM XD and XDR cover SRAM’s 11 and 12-speed cassettes. The wheel’s freehub determines which cassettes will physically fit; we name the freehub standard on every cassette SKU so the buyer doesn’t have to cross-reference.
Do you supply electronic shifting components (Di2, eTap, EPS)?
Not at launch. Electronic drivetrain components require ecosystem-specific software updates, battery management, and direct service relationships with the brand that don’t fit a third-party wholesale model at launch volumes. We’ll revisit when the right brand relationships are in place.
Do you supply derailleur hangers?
Yes. Replacement hangers for the most common frame standards, named by [Wheels Manufacturing hanger reference numbering]. Hangers are a high-attachment-rate item for any service-focused shop; a workshop that doesn’t carry them sends customers to the competitor that does.
What’s the MOQ on drivetrain parts versus complete bikes?
Substantially lower. Drivetrain SKUs run at MOQs that make sense for workshop reorder cycles, typically 50 units per SKU depending on the part, with chains and cassettes running tighter than cranksets and shifters. Confirmed per category in your quote.
What’s the lead time on a standard reorder?
Stock catalog items typically dispatch within around 2 weeks dispatch for stock catalog items. Private-label production runs to the standard 2–3 months from sample approval timeline. Mixed orders carry both lead times honestly in the quote.
What chains do you supply and are they compatible across brands?
Chains in 8 through 12-speed from Shimano, SRAM, KMC, and Connex ecosystems where our supply chain supports them. Chains are largely cross-compatible at the same speed count (an 11-speed KMC chain runs on a Shimano or SRAM 11-speed drivetrain), with brand-specific exceptions like SRAM Flat-Top chains for 12-speed AXS road, which require the matching cassette and chainrings. We name the brand-specific exceptions at the SKU level.
Do you supply chain breakers and quick-link pliers?
Not in this category, but they sit naturally in the wholesale tools and workshop range. The tools that fit our drivetrain SKUs are stocked alongside the parts so a first-time drivetrain stocker can quote both at once.
Can you supply a starter inventory for a new shop?
Yes. Quote stage confirms a starter inventory across drivetrain SKUs based on your shop’s target customer mix (road, MTB, mixed) and your service capacity. The order pattern field on the form flags this so the reply structures appropriately, since a sample-first starter quote looks different from an ongoing-reorder quote.
What’s the warranty on wholesale drivetrain parts?
Drivetrain parts are wear items. Warranty typically covers manufacturing defect rather than wear, and the warranty period is shorter than for frames and frame components: [12 months on cassettes, chainrings, and derailleurs against manufacturing defect; chains carry a defect-only warranty without a fixed period because chain life is mileage-driven]. Confirmed in your quote.
Stock the categories your workshop needs alongside drivetrain.
Drivetrain-adjacent in the workshop reorder pattern. The categories you stock alongside drivetrain because customers fitting one almost always need the others.
Ready to stock drivetrain properly?
Compatibility named on every SKU, brand resale alongside private label, freight quoted honestly. Reply within 2 business days.