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TREK STACHE 7 SA PROFESSIONAL

The Roscoe still runs a 73mm threaded bottom bracket that can take a 30mm spindle. The cable fastener secures the cables to the inside of the downtube, about half way along it, in an attempt to keep noise to a minimum. Cables aren’t fully guided internally, so may have had a tendency to rattle about within the aluminium frame, causing unwanted noise. Trek have added an internal cable fastener on the downtube. The 2022 Roscoe gets a SRAM UDH hanger, meaning you’ll be able to replace a bent hanger very easily, picking it up from almost any bike shop, not just those that are Trek dealers. The 2022 Trek Roscoe frame has two water bottle mounting positions one on the seat tube and one on the top of the downtube The Roscoe 6 is still the previous frame, so still has the 141mm QR axle. Trek have dropped the 141 Spacing on the Roscoe, upgrading the Roscoe 7, 8 and 9 to Boost 148mm spacing running a thru-axle. Chainstays are shortened from 438mm to 430mm, though the boost spacing rear end still permits a healthy tire clearance of 29″ x 2.6″.įor the 2022 Roscoe, Trek have moved away from a proportional frame design with a consistent SA and rear-centre length across the frame sizes.

Direct-Fit refers to individual bearings pressed directly into the frame with no removeable BB cups.The effective seat tube angle of 74.7° is a major change too, now far more upright than the 70.7° SA of the 2021 iteration.

The bearings are then pressed into the cups.

Press-Fit refers to aluminum or plastic bottom bracket cups, which are pressed into the frame.

TREK STACHE 7 SA PROFESSIONAL

Or, have a professional bike mechanic do the work for you. To accurately identify your frame's BB shell, always measure the ID and width. Wheels Mfg does not offer any compatible bottom brackets for Italian threaded frames.Wheels Mfg does not make the threaded cups for these frames. Aluminum cups are threaded into the frame that result in the BB86 standard (41mm ID x 86.5mm width). * Colnago standard with a threaded BB shell. * Essentially a PF30 with 92mm wide shell. * Essentially a PF30 with 86.5mm wide shell. BB shell is 83mm wide, but symetricalįrame's bottom bracket shell is threaded with M47 x 1 threads. For the PF30A-83 frames, the BB shell is 5mm wider on the drive side and +10mm wider on the non-drive side.Ĭannondale Asymmetric Integration (Ai) found on Scalpel-Si and F-Si System frames. Specialized carbon road frames with 61mm wide shells for use with Specialized FACT cranks.Īsymetrical BB shell is +5mm wider on the non-drive side (PF30A). Also used by 3T.īB shell is 11mm wider on the non-drive side. Bottom Brackets for 24mm & 22/24mm Dia Spindle CranksĬervelo Frames except R5ca.

For the BB30A-83 frames, the BB shell is 5mm wider on the drive side and +10mm wider on the non-drive side. BB shell is 11mm wider on the non-drive side.Īsymetrical BB shell is +5mm wider on the non-drive side (BB30A). May use removable c-clips as bearing stops, or the bottom bracket shell may have molded or machined bearing stops.Ĭervelo R5ca Frames only.

Bottom Brackets for 29mm Dia Spindle Cranks (DUB)Ħ806 bearings are pressed directly into the frame.

Bottom Brackets for 30mm Dia Spindle Cranks.

Some brands call this PF41, describing the frame shell diameter instead of the crank spindle diameter. Bearings are pressed directly into frame.ĭesigned to be used with 24mm spindle diameter cranks (Shimano HollowTech II), hence the PF24 designation. Once you determine your bottom bracket standard, you then need to Identify Your Crankset. The chart below lists most of the current bottom bracket standards found on today's frames. Then measure both the inner diameter and width of your frame's bottom bracket shell. To accurately determine the bottom bracket standard in your frame, it is best that you remove your crankset, and any installed bottom bracket cups or bearings. Finding the correct bottom bracket for your frame can be challenging.