The Parts Bin


100 TW
Jan 9, 2014
Canada and the USA
This is a thread where we can discuss parts, equipment, accessories, what fits, what doesn't fit, cool stuff too!

I have tried a few SRAM shifters, and never liked them. I am a "Rapid Fire Plus" fan. Thumb/Index finger shifting.

Shimano Tourney - Entry Level
Shimano Atlus
Shimano Acera
Shimano Alivio
Shimano Deore
Shimano SLX - Best Value Option
Shimano Zee - Downhill
Shimano Saint - Downhill
Shimano XT
Shimano XTR - Race, Trail, Di2 - Pro Top Tier

X3, a 7-speed gear system with technology that’s trickled down from the top. It’s comparable to Shimano Altus in price.

X4 is next in the line-up with 9-speed shifting. Compared to X3, the X4 components feature more metal for better durability. X4 isn’t offered as a complete groupset, and so it’s common to find SRAM X4 parts mixed with those from other brands.

X5 is the first official groupset in SRAM’s line-up. This groupset is popular with bike brands as it offers upper-level features such as a double-chainring crank and 10-speed gearing.

X7 like Shimano’s Deore, is SRAM’s first groupset that can handle regular and proper off-road use.

X9 on mid priced bikes,
For 2016, SRAM will be replacing its X7 and X9 groupsets with 'GX'. This 1x11 or 2x10 groupset borrows many design cues from the brand's upper levels groups and signals a new unrivaled, entry point into single-ring drive trains.

This can sum it up
As general rule any brand of FRONT shifter will work with any brand of FRONT derailleur as the actual derailleur is not indexed specifically for the chain rings and the chain ring spacing tends to be generic on 9 speed systems. An exception would be that you cant use a std Shimano 9 speed shifter with the new 10 speed Shimano Dyna sys on the front as the chain ring spacing is different - its narrower on the 10 speed Dyna sys.
Rear derailleurs and shifters are brand specific.
I.E. you must use SRAM with SRAM and Shimano with Shimano due to differing cable pull ratios.

My notes,
Mix 7 and 8 varies.
5,6,7 all the same
SRAM also offer parts under several different marques as they've slowly bought out several smaller, specialist bike part manufacturers. These include:

Brake systems - Avid
Cranksets - Truvativ
Mountain Bike Suspension - Rock Shox

SRAM are phasing out 3 ring front chainrings in their MTB range for a 2 front chainring and single chainring, 10 or 11 sprocket rear cassette setup, commonly found on road bikes.

There are some groupsets which are designed for a specific purpose (track cycling, downhill etc.). Some are just partial groupsets which are intended to be used with other groupsets.

Shimano Dura-Ace Di2 7970 - (10) - electronic shifters and derailleurs intended to be used with regular Dura-Ace 7900 parts (cranks, cassette, chain, bottom bracket etc.)
Shimano Dura-Ace (track) - (1) - Track bikes
Campagnolo Pista - (1) - Track bikes
Campagnolo Time Trial - (N/A) - Time Trial components with bar-end controls, chainrings with oversized toothing and super-light brake levers in composite material.
Shimano Hone - (9) - Enduro and Freeride applications
Shimano Saint - (9) - Downhill and heavy-duty applications
Shimano Capreo - (9) - including a cassette incorporating a 9-tooth sprocket for small-wheeled bicycles

The Shimano Nexus began as an internal hub only and has slowly grown into its own groupset including a higher end internal hub (Alfine, previously Nexus 'Redline'), chain, shifters, cranks, brakes and calipers.

Shimano Alfine - (8) - Internal (planetary) hub gearing, hydraulic disc brakes or mechanical calipers
Shimano Nexus - (8) - Internal (planetary) hub gearing, drum brakes or calipers
True about the lack of need for closely spaced gears. I've taken to putting old school friction shifters on some of my bikes. Makes them really adaptable to running various hub motors on the back. Swap motors, no worries if the number of gears is different, or if indexing is off.

Sure, a pita to shift, but to shift once a month, or less, OK. In some cases, two gears up front, but no shifter. No real need for it. So rarely is the little gear used.
On bikes that I pedaled, the good old Ultegra was my prefered RR derailer. This one can take a hit, in fact many hits and survive many frames. One of them is still used as a chain tensioner with an extra spring on my Demo 8. :wink:

On an ebike, I don't like to shift. I mean, high power single is making it very intuitive and quick. A CVT would be best, but yet to be made available in a convenient size and strength.
I like smooth shift changes. I absolutely hate rough shift changes. I think the SLX is like the old style LX or DX.

I feel cheap... Most of my ebike stuff is Acera. It works perfectly fine as long as it's adjusted properly. On my BBS02 cyclocross I run MTB Acera rear deraileur with a 9 speed megarange cassette mated to a Shimano Sora 3500 dropbar road shifter. Absolutely love it as it pretty much removes any wrist fatigue on long rides and provides great gearing steps from 20% climbs to high speed 32mph flat runs. The front mech is in place to hold the chain, but not connected to the shifter (BBS02 is single chainring anyway).

But yeah... on my old road bike from 2010, I run all Ultegra... its unbreakable. I've had to replace cables so many times but the mech parts shift smooth as silk.
Where would Ultegra be put on the heirchy?

Ah thats why I couldnt find it, Ultegra is road bike gearset.
On the next rung of the ladder comes Shimano Ultegra, a strong favourite amongst racers and those after a strong, crisp shift, stiff cranks on the chianset, and prompt braking that bites the wheel rim.

Tiagra 105 Ultegra Ultegra Di2 Dura-Ace Dura-Ace Di2
Yep, this one old model Ultegra. I believe it is the strongest derailer ever made. Abandoned by most road racers because of its weight, it had a new life for a decade in mountain trails.

I am learning a lot from this new hobby of mine, even though its expensive because I went straight to the high powered motor for my 1st build, however technically its my second ebike.

The first ebike was something like a 300W geared department store motor, with upgraded batteries and over-volted the motor. Which ended up killing it on a hill climb to just about a stall scenerio which is bad Bad BAD! That ebike lasted for about a half dozen rides, and 2 weeks. Just to get me interested and full fledged into building the high powered one.

I've learned that I can use a SRAM front shifters on Shimano, but cant use SRAM on rear.
Shifter cables and Brake cables ARE different sizes and cable ends.
Make sure the tool is properly seated in the BB, and make sure you are turning it the right way.
I laced up and trued my own wheel. I tried before to true a wheel, but no dice.
Its better to buy a reputable battery from a reputable company when starting out.
Its also better to buy a kit, then to try and build one up DIY. Especially if you want to ride right away.
What do you guys think of this $15 geared internal hub with cassette?

Would you have to use a SRAM rear Deraileur and shifters with it?
do any of these help?