29er Bike SAYA

Sustainable 29er bike in the spirit of the circular economy. This bike can also be used universally for everyday use and travel. The module tires allow different profiles (also spikes). Threads for mudguards, luggage racks and bottle holders are available.
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Re-Think:
We say goodbye to garbage and think in cycles. Nature is our role model.

Re-Use:
We save used frames and selected parts from the scrap press and upgrade them in upcycling processes. All elements are designed for high durability, repairability and refurbishment.

Re-Manufacturing:
We would like to have all of the bicycles we put on the market back at some point, to disassemble, refurbish and produce again.

Re-Cycling:
There's very little about our bikes that can't be recycled. Essentially, these are plastics for which the recycling infrastructure is not yet available. We are in dialogue with our suppliers in this regard. We do not use petroleum-based carbon, which later becomes hazardous waste.

All of our bikes are individually built as needed, we don't push large quantities of pre-produced goods onto the market.

Each of our bikes has an electronic product passport to trace the history of the bike. This is stored on an NFC tag as an open system. In this way, we can gain experience in interaction with cyclists and bicycle workshops and prepare for future EU legislation on the circular economy.

Frame: upcycled steel, painted with linseed oil paint

Fork: steel

Headset: Acros

Bottom bracket: Thun, specially developed with us, shaft made from recycled steel with hydropower, extremely durable bearings

Cranks: Aluminum upcycled

Chainring: Surly stainless steel 38T.

Chain: Connex with stainless steel outer plates

Cassette: low susceptibility due to only 8 gears, nevertheless large spread 12-42 teeth; currently Microshift, European version with individually replaceable sprockets is under negotiation

Derailleur: Shimano upcycled with mosch.plus chain tensioning function

Shift cable: stainless steel with conventional housing (currently no alternative possible)

Shifters: Sunrace thumb shifters

Handlebar: Steel Ergotec Riser

Stem: Shogun Steel

Bar Tape: mosch., reused butyl and snapboard, glue-free, machine washable, cork stoppers

Hubs: Tune ClimbHill / KillHill with endurance bearings

Spokes: Niro DD 2.0-1.8-2.0 from Europe

Rims: Slovenian beech wood, made in Italy, reinforced by us with basalt fiber composite

Rim tape: organic cotton

Inner tubes: Schwalbe with recycled content

Tires: ReTyre module tires with zip-able Gravel Chaser Skins 50-622 (made in Europe from 2024)

Brakes: hydraulic Shimano disc brakes (preferably upcycled), with vegetable oil filling, stainless steel discs and pads from Trickstuff

Seatpost: Upcycled Aluminum or Shogun Steel

Saddle: Selle Italia Greentech, made from production waste with low energy consumption, glue-free, leather-free

NFC tag: Thun

Please note: We build environmentally conscious UpCycling bikes and use partly tested used parts, which we value for further use. The appearance of these parts may differ from the parts shown in the pictures. The basic idea of the bike is of course retained and the specified specification applies, in which we also name the UpCycling parts as such.

​Shipping: We build every bike in an environmentally friendly way as needed and currently require 4-6 weeks from receipt of order to shipping. We will provide status updates during this period and aim to reduce the lead time in the medium term.
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Size guide:
S approx. 1.65m - 1.73m
M approx. 1.70m - 1.78m
L approx. 1.78m - 1.85m
XL > 1.85m