BOMwiki the bill-of-materials encyclopedia
30,441,948 parts mapped · 192,925 items

This page is machine-generated and unverified (what this means). Treat details as provisional. If you know this hardware, weigh in or correct it directly with Edit.

Discussion History

Drivetrain

Assembly

Wide-range 1x9 drivetrain sized for heavy loads, with a 38T chainring, an 11-36T cassette, and a clutched rear derailleur. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Drivetrain parts and their functions

9 top-level parts · 25 parts in total · full bill of materials below
Drivetrain parts diagram: 1 crankset, 2 bottom bracket, 3 chainring, 4 chain, 5 cassette, 6 rear derailleur, 7 trigger shifter, 8 pedal, 9 shift cable. 25 parts in 9 top-level items.
Drivetrain parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Crankset 2 parts 1× Forged 170mm crank arms on a square-taper or splined spindle.
2 Bottom Bracket 3 parts 1× Sealed threaded bottom bracket in the 68mm BSA shell.
3 Chainring 1× 38T narrow-wide ring
4 Chain 1× 9-speed chain
5 Cassette 1× 11-36T cassette
6 Rear Derailleur 4 parts 1× Clutched
7 Trigger Shifter 1× Trigger shifter
8 Pedal 3 parts 2× Platform pedal on a sealed spindle.
9 Shift Cable 1×

3D model

No 3D model yet. Have a CAD file of this? Add a 3D model. STL renders right on this page; STEP, FreeCAD, and OpenSCAD sources are welcome too (openly licensed, like all 3D models on BOMwiki).

Build & assembly graph

expand / collapse · shared sub-assemblies converge · links to related products · est. labour
product / assembly shared across products atomic part related product

Tap an assembly to expand/collapse · tap a part to open it · use “Open page” for any node · drag to pan, scroll to zoom.

Bill of materials for Drivetrain

9 top-level lines · 21 rows shown · 25 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Crankset 2 parts cargo-bicycle-crankset 1× 1 3 assembly
1.1 Crank Arm cargo-bicycle-crank-arm 2× 2 · part
1.2 Crank Spindle cargo-bicycle-spindle 1× 1 · part
2 Bottom Bracket 3 parts cargo-bicycle-bottom-bracket 1× 1 6 assembly
2.1 Ball Bearing ball-bearing 2× 2 · part
2.2 Bottom Bracket Cup cargo-bicycle-bb-cup 2× 2 · part
2.3 Oil Seal oil-seal 2× 2 · part
3 Chainring cargo-bicycle-chainring 1× 1 · part
4 Chain cargo-bicycle-chain 1× 1 · part
5 Cassette cargo-bicycle-cassette 1× 1 · part
6 Rear Derailleur 4 parts cargo-bicycle-rear-derailleur 1× 1 5 assembly
6.1 Derailleur Cage cargo-bicycle-derailleur-cage 1× 1 · part
6.2 Jockey Wheel cargo-bicycle-jockey-wheel 2× 2 · part
6.3 Coil Spring coil-spring 1× 1 · part
6.4 Fastener Set fastener-set 1× 1 · part
7 Trigger Shifter cargo-bicycle-shifter 1× 1 · part
8 Pedal 3 parts cargo-bicycle-pedal 2× 2 3 assembly
8.1 Pedal Body cargo-bicycle-pedal-body 1× 2 · part
8.2 Ball Bearing ball-bearing 1× 2 · part
8.3 Pedal Spindle cargo-bicycle-pedal-spindle 1× 2 · part
9 Shift Cable cargo-bicycle-shift-cable 1× 1 · part

Where the drivetrain is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Cargo Bicycle

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $0.01–$2. How estimates work
VendorHQSpecialtyMOQLead time
🇮🇳Sundram Fasteners
sundram.com ↗ 		Chennai, IN Fasteners 10,000 pcs 3–5 wks
🇮🇳Lakshmi Precision Screws
lpsindia.com ↗ 		Rohtak, IN Fasteners 10,000 pcs 3–5 wks
🇨🇳Suzhou Escort
escort-fastener.com ↗ 		Suzhou, CN Fasteners 10,000 pcs 3–5 wks
🇨🇳Shanghai Tianbao
tbfastener.com ↗ 		Shanghai, CN Fasteners 10,000 pcs 3–5 wks
🇮🇳Sterling Tools
sterlingtools.in ↗ 		Faridabad, IN Fasteners 10,000 pcs 3–5 wks