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

Long chain run from the hand cranks to the front-wheel cassette through idler pulleys, with a rear-style derailleur and grip shifter giving a wide multi-speed range for climbing. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Drivetrain parts and their functions

5 top-level parts · 10 parts in total · full bill of materials below
Drivetrain parts diagram: 1 chain, 2 cassette, 3 derailleur, 4 idler pulley, 5 chain guide tube. 10 parts in 5 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 Chain 2× Long double-length chain run
2 Cassette 1× Multi-speed cassette
3 Derailleur 3 parts 1× Indexed derailleur
4 Idler Pulley 2× Chain routing idlers
5 Chain Guide Tube 1× Chain guide tube

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

5 top-level lines · 8 rows shown · 10 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Chain chain 2× 2 · part
2 Cassette hand-cycle-cassette 1× 1 · part
3 Derailleur 3 parts hand-cycle-derailleur 1× 1 4 assembly
3.1 Derailleur Cage hand-cycle-derailleur-cage 1× 1 · part
3.2 Derailleur Spring hand-cycle-derailleur-spring 1× 1 · part
3.3 Jockey Wheel hand-cycle-jockey-wheel 2× 2 · part
4 Idler Pulley hand-cycle-idler-pulley 2× 2 · part
5 Chain Guide Tube hand-cycle-chain-tube 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

Handcycle

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