How do I know what size rear derailleur?
The more potential slack, the bigger a derailleur cage you need. For example: If your drivetrain has a 44-22 chainring on the front and a 32-11 cassette on the rear, then… So your drivetrain capacity is 43, which probably falls with the parameters of needing a long cage derailleur.
What is the difference between GS and SGS?
There are two cage length options – GS (mid) and SGS (long). The mid cage GS derailleur is suited to most double and single ring applications. The weight difference between SGS and GS derailleurs is a negligible seven grams. The Shimano XTR M9000 Rear Derailleur is worthy as their top-of-the-line unit.
What is a GS rear derailleur?
“-GS” refers to medium-cage rear derailleurs, built with a maximum chain capacity of 37T to 39T or less. This is usually the longest cage offered for road bike rear derailleurs, but also the default “short” option offered for their mountain bike counterparts.
What does GS stand for in Shimano?
Shimano MTB rear derailleurs last letters will be GS or SGS, which stand for “Short cage” or SGS for long cage. A XTR rear derailleur will be RD-M970-GS (for short cage) or RD-M970-SGS (for long cage)
What does SGS mean?
Standard Global Services
S.G.S stands for Standard Global Services. Upvote1 Downvote. Report. Answered August 2, 2017 – Information Security Officer (Current Employee) – Sacramento, CA. SGS S.A. (formerly Société Générale de Surveillance), a Swiss company providing inspection, verification, testing and certification services.
Is GS medium or long cage?
Derailleur cage
| Cage | Shimano | Length |
|---|---|---|
| Short Cage | SS | 50 mm (centre-centre) |
| Medium Cage | GS | 74 mm (centre-centre) |
| Long Cage | SGS | 86 mm (centre-centre) |
Are rear derailleurs interchangeable?
The important thing is that the different ratios means that rear mechs and shifters are not interchangeable between manufacturers – Shimano rear mechs must be matched with Shimano shifters, and SRAM with SRAM (however Shimano front mechs can be used with SRAM shifters).
Why did my diff ratio change on my mg?
Sometimes doubt arises as to the diff ratio currently fitted to a car, as a significant number of them have had their diff ratios changed over the years. Reasons include Owners taking the cheap option and fitting a saloon car diff when their original MG unit gave trouble. No option if the original ratio is not available.
What kind of differential does a MG Rover have?
Find out now. STRAIGHT CUT FINAL DRIVE GEARS CROWN WHEEL & PINION AUSTIN MORRIS MG ROVER? Only 1 left. 2018 Ford Kuga 1.5 Petrol 4×4 Auto. Front Differential/Transfer Box CV617L486MG
How many turns does a midget MGA have?
* MGA, B, Midget. V8, MGC are closer to 3 turns, T-types closer to 5. Because we have only one wheel in the air and the other not turning, the crown wheel will be turning only half as far as the wheel, so in the two turns of the wheel the crown wheel will do one full turn.
Sometimes doubt arises as to the diff ratio currently fitted to a car, as a significant number of them have had their diff ratios changed over the years. Reasons include Owners taking the cheap option and fitting a saloon car diff when their original MG unit gave trouble. No option if the original ratio is not available.
What’s the diff ratio on a Morgan MGB?
Not sure about what parts Morgans used over the years. MGB automatics used the 3.7:1 ratio as well as some MGCs. The MGC’s ran 3.7, 3.3, and 3.07. They are normally in high demand by not only C owners but also the V8 conversion crowd. I find this UK link for crown wheels etc. If you have a Banjo looks like the ratios are 3.9 (standard) or 3.7.
What kind of rear axle does a MGC use?
The BGT, MGB automatics and the MGC all used the Salisbury (late) type. The MGC 3.7 rear axles are less sought-after. I have one that I would gladly exchange for a 3.3 or, best of all, a 3.07.
When did the last MG TR3 come off the line?
The last TR3 came off the line in ’62 and at that time MG and Triumph were competitors. It wasn’t until BMC was brought into the BL fold did they became part of the same group. Even towards the end they didn’t share a lot of major components – with the 1500cc engine and trans from the Spitfire as used in the midget being a notable exception.