Dcmkx2000

Manual for carbon bike say 5Nm max torque on seatpost. The Ritchey torque key is pre-set to 5Nm, but it comes with a 4mm bit, my seatpost has a 5mm bit.

Can I get the 4mm bit out (web sites selling it are saying it doesn't come out)?

Even if I get it out, should I use a 5mm bit if it is calibrated for 5Nm with a 4mm bit?

briscoelab

They are great bits of kit. The 4mm does not come out (easily).

JTGraphics

I have one works well for that one size.

The one I like and use the most is a Wiha 28554 TorqueVario-S Handle, Newton Meter Scale 2.0- 8.0Nm not cheap but worth every penny, you also want to get these 2 adapters for a full range of uses Wiha 28582 Square Drive Adapter For 1/4-Inch Sockets and Wiha 28581 Bit Holder Adapter For 1/4-Inch Drive Bits.

Wiha 28554 TorqueVario-S Handle, Newton Meter Scale 2.0- 8.0Nm (Best tool for small apps.)

Kylerk

I could be wrong, but I don't think this will be a problem. My reasoning . . .

The equation for Torque is:

Torque = Force x Distance

Where "Distance" is the distance between where you are applying the force (where you are holding the wrench) to the center of the axis of rotation (the center of the bolt). By using a bit that is 1mm larger, you are increasing that distance by a mere .5mm, which is going to be negligible.

jwible

I like my torque key. But I'd take that Wiha tool over it any day.

Seattle Forrest

I like my Ritchey torque key, too, but it sounds like it's time to get something a little more versatile.

Looigi

I recently got a Ritchey torque key and took the 4mm bit out easily by heating the bit with a heat gun and pulling with pliers. You can also use a lighter or other source of flame to heat it to soften the adhesive. After you get it out, scrape off the remaining adhesive with a hobby knife etc.. I have other torque wrenches but got the Ritchey because it's convenient for all the 5 Nm fasteners on our bikes.

Dcmkx2000

has anyone got the 4mm bit out?

Dcmkx2000

My seatpost calls for 5Nm, im going to buy a Ritchey and try to pull out the 4mm bit. I think I will try a lighter and some pliers.

Quel

Giant also sells torque keys with interchangeable bits. They are in 4 and 6nm versions though, not 5.

bmfsiii

I did. Stuck part of it in the vise and gently pryed up, leaving the bit in the vise.

fa63

If you get one of these seatpost collars (Woodman Deathgrip SL Ti), you can use the Ritchey torque key for both the stem and the seatpost:

thcri

This one came with my bike. The key 4mm is not removable.

mechBgon

Yes, in fact I had one that wouldn't stay in.

If you want a pre-set 5 N-m torque key like the Ritchey, I vote for the Bontrager one simply because it's far easier on one's hands. But a small Park Tool beam torque wrench and some bits would ace it for versatility.

tylerwal

I've never seen one in person, but from that picture it looks like a standard 1/4" bit that most likely does come out (with effort)

learnmedia

I have the Torque Key and it works great on my Ritchey stem bolts as well as my Omniracer seatpost collar with 4mm bolt. Well worth the $20 simply based on convenience and portability. That said I also own a couple of click-type Sette torque wrenches that, at $19.98 for the 1/2 in. drive and $39.98 for the 1/4 in., are great values as well.

early one

I think a Sears beam type is a good bang for the buck, https://www.sears.com/shc/s/p_10153_1...=1295609638425

You will need the proper sockets, if you don't have them already.

ahumblecycler

Awesome! CAAD10 with Thomson Masterpiece post, Cannondale seat clamp, and 3T stem all require 5nm torque ... 1 tool to rule them all!

I plan to get the Bontrager for the bling ... it will replace the flat black Ritchey

pmt

Sure, the 4mm yanks right out of there, no problem. It's a great little tool for making sure you don't overtighten fasteners.

jaltone

I know this thread is 2 years old, but I want to update the information here for future readers. There is a version of the Ritchey TorqKey that comes with a few bits. Google this:

Ritchey TorqKey 5Nm with 4 bits M5/4/3/T-15


And if you need an M6 hex bit (like I did for my saddle rail clamp), you can get these high quality CRM-72 tool steel bits (that are much, much better in quality than the ones that came with the Ritchey TorqKey) from Wiha. The hex bits are in 2.0, 2.5, 3.0, 4.0, 5.0, 6.0 mm sizes. Google this:

Wiha 71397 2.0 to 6.0mm Hex Metric Insert Bit, 6-Piece


Cheers.

jaltone

Thank you very much for this information. If ever I get into more serious bicycle maintenance (other than the rare seatpost height or saddle fore-aft corrections I do), I'll get this one too.

period3

My ritchey torque key has removable bits, and indeed came with a set of 3 bits. There is another version that has a non-removable bit.

Mine is like this:
https://www.ebay.ca/itm/Ritchey-Tool-...item5aee00d6a5

bianchi10

I use my ritchey key all the time! wish I had one of those wiha torques but, my ritchey was $15 and works for my needs.

Jakedatc

velonews just had a Cross behind the scenes and the cannondale mechanic had these with interchangeable bits
https://www.amazon.com/Torque-TLPT5NM...pr_product_top

jsharr

CDI makes a unit in 4, 5 or 6 nm that will allow bit changes.

https://www.protorquetools.com/prod-1...it_tlpt5nm.htm

Have not used one though.