Product Description Specifications:Application:Enduro, DownhillMaterial:aluminiumAttachment:ISCG 05Bash Guard Capacity:30 - 36 teeth (round chainrings), 30 - 34 teeth (oval chainrings)Gearing:10-/11-/12-speedCompatibility:Round Chainrings: Same size or larger: If you ride a round chainring with 30 teeth, you need at least the Crash Plate for 30 teeth or a larger one. Oval Chainrings: Choose +2 teeth or larger: If you ride an oval chainring with 30 teeth, you need at least the Crash Plate for 32 teeth or larger. Santa Cruz Carbon Frame: The Bashguard does not fit all Santa Cruz Carbon frames, because their ISCG 05 has too large tolerances. The distance from centre to centre should be 53.9 - 57.9 mm. Features:light plate made of aluminiuma Torx-25 screwdriver is sufficient for assembly, disassembly of the crank is not necessarybolts do not protrude because Bashguard is 5 mm thicklight hollow bolts made of stainless steelbolts give way in case of strong impact and thus protect your framemade in GermanyModels:30 tooth: Manufacturer Numbers:1000411 (red), 1000385 (blue), 1000415 (orange), 1000386 (purple), 1000384 (natural), 1000382 (black), 1000407 (gold), 1000383 (grey) 32 tooth: Manufacturer Numbers:1000412 (red), 1000390 (blue), 1000416 (orange), 1000391 (purple), 1000389 (natural), 1000387 (black), 1000408 (gold), 1000388 (grey) 34 tooth: Manufacturer Numbers:1000414 (red), 1000400 (blue), 1000418 (orange), 1000401 (purple), 1000399 (natural), 1000397 (black), 1000410 (gold), 1000398 (grey) 36 tooth: Manufacturer Numbers:1000413 (red), 1000395 (blue), 1000417 (orange), 1000396 (purple), 1000394 (natural), 1000392 (black), 1000409 (gold), 1000393 (grey)Contents:1 x 2 x 77designz M6x11 banjo bolt1 x 77designz sticker Manufacturer: 77designz UG An der Kolvenburg 8 48727 Billerbeck Germany info@77designz.com