In the next few days we will receive the Progression Bike chain tensioner for testing for our super project of Dream Build (stay tuned)!
[Press Release]THE TASK OF THE SINGLE-SPEED CHAIN TENSIONER BY PROGRESSION IS TO TENSION BICYCLE CHAINS (1/2 “X 11/128” 10-SPEED CHAIN) FOR BICYCLE FRAMES WITH VERTICAL DROPOUTS / THRU AXLES.
EXTENSION FROM THE CHAINSTAY MAX. 50 / 65 MM.
THE CHAIN IS PERMANENT ON TENSION.
THE BT20 IS MOUNTED IN THE WHEEL / FREE HUB “NO CONNECTION TO THE FRAME”.
THE TENSIONER ARE PROTECTED FROM THE FRAME – EVEN IN THE CASE OF A CRASH!
WITH THE BT20 IT IS POSSIBLE TO CONVERT A CONVENTIONAL FREE-WHEELING HUB (SHIMANO / SRAM) INTO A SINGLE-SPEED DRIVE.
– DIMENSIONS: LENGTH X WIDTH X THICKNESS, APPROX. 150 X 70 X 40 MM
– WEIGHT: APPROX. 100 G, 8 TOOTH SPROCKET WITH A MINIMUM WEIGHT
– MATERIAL: HIGH STRENGTH ALUMINUM EN AW-7075, ANODIZED SURFACE, BEARING AND SCREW MADE OF STAINLESS STEEL
– SINGLE SPEED KIT: SPROCKET 15 T, LOCKRING, 9 SPACER SET (2X10 / 1X5 / 1X4 / 3X3 / 1X2 / 1X1 MM)
THE BT20 ONLY WORKS WITH THE SSK FROM PROGRESSION
-MAIN FEATURES: STYLISH AND SLEEK / ALMOST INVISIBLE INSIDE THE FRAME / LIGHTWEIGHT DESIGN / SLIM DESIGN WITH A MINIMUM WEIGHT / STRONG AND ROBUST / BEST MATERIALS WITH GOOD MECHANICAL PROPERTIES.
