Aftermarket Brompton Components + Weights

A list of common additions / upgrades and their weights! 

Pedals:

Chainrings:
Litepro 53t with bash - 105 grams 

Cranks:
Ti Parts Workshop - Forged, 53t, with bolts, - 477 grams 
Thorn Triple Solo Alloy - no ring/bolts - 140mm- 1673L140 - 484 grams 

Bottom Brackets: 
Shimano BB-UN55 - 309 grams

Front Hubs:
Jtek superlight - Xgrams
SP dynamo - sv-9-fb - Xgrams

Rear Hubs: 
Hubsmith R015R 28h - 227g
Rims:
Joseph Kuosac 38mm Carbon - 28h - 342 grams 

Spokes:

Front Wheels:

Rear Wheels: 
Sturmey Archer SRF3 / Jtek spokes / Sun CR18 - 1410 grams 

Wheel Fittings:
Jtek Allen key skewer - Front - 26 grams

Tyres: 
Nexo - 37mm - Solid - 420 grams 

Tubes: 

Rim Tapes:
Jtek Yellow Tape 349mm - 10 grams

Seat posts:

Seatclamp/clips;
Ti Parts Workshop - easy large handle - 53 grams 

Saddles:
Joseph Kuosac - wide - 273 grams 
Brooks Cambium S17s carved - 404 grams

Suspension Blocks: 

Easy wheels:

Racks:
RJT Alloy - 190 grams 

Handlebars: (All 25.4mm)
Joseph Kuosac - flat - 195 grams
Joseph Kuosac - full rise - 239 grams
Litepro Ghost - 580mm - 144 grams 

Grips:
Joseph Kuosac - 75 grams

Brake levers:

Shifters: 
Sturmey Archer - SL30 3 speed - 79 grams 

Brakes:

Headsets:
Joseph Kuosac - sealed bearing - 100 grams 

Derailleurs:
H&H Derailleur + fittings - 9 grams

Hinge Clamps:
Joseph Kuosac knobs - 124 grams 

Other; 
Ti Parts Workshop Ti hinge spindle/bolts - 23 grams