Which Caliper works best w/ the Fox DH40? My conjecture is that #3 Caliper will give me the correct spacing for a 200-205mm rotor, but I'm not certain - anybody have any ideas?
Thanks!
Thanks!
Hope Mono M4 & Fox DH40
- Thread starter ChainWhip
- Start date
the DH40 has a new brake mount standard no?
Hmm... Maybe it's the #5 Cailper I need... Grr...
Supposedly, the new brake mount allows you to use an "XC" adapter or Caliper but still allows you to use a 200-205mm rotor.zedro said:
Here's a PDF:
http://www.foxracingshox.com/website/..\BackOffice\UploadedFiles\OwnersManual\2005_Fox_40_Forx_USER_SPEC_revA.pdf
Here's the Hope fit list:
http://www.hopetech.com/technical/tab_fitt.htm
It cant be a "standard" if no one else uses it!
Sorry, but that really annoys me. Why does everyone think they can come up with their own standard? its not standard if only ONE company does it!
Sorry, but that really annoys me. Why does everyone think they can come up with their own standard? its not standard if only ONE company does it!
I wouldn't go so far as to say its "their own standard". It's based on the IS standard, but for lack of a better phrase, it is "drawn" out farther so you don't have to use a "bigger" adapter/caliper to allow use of a 200-205mm rotor.BigMike said:
I'm just trying to figure out which M4 Caliper works.
ah yeah thats true.ChainWhip said:
Buy Hayes
neaky:
So you want a Mono M4 caliper that mounts right on to a "160mm" disc so to speak, because it gives you 200mm because of the "new" standard on the Fox? That would traditionally be caliper #5, I don't think that caliper exists for Mono M4 yet (only 3 & 8 sp far).
I looked at this issue when the DH40 brake "standard" was announced.
You would use the caliper that allows a 160mm brake on the front... but they don't make one for M4s, the smallest they make is 180mm for the front. That leaves you with two options although I don't know which will work:
1. Run a 180mm front caliper with a 220ishmm rotor... Someone was saying that this 9ish in size was available.
2. Run a monster T post mount caliper with a hayes 160mm XC adapter... Kinda defeats one of the cool parts about hopes, but hey... it will let you run a 200mm rotor. That a Hope #12 caliper. Anyone know if this will work? It maybe the 9:74 caliper that we are looking for, which they don't make for M4s.
Hope may have a caliper #5, which they list on their website but I have never seen for an M4 or M6ti.
You would use the caliper that allows a 160mm brake on the front... but they don't make one for M4s, the smallest they make is 180mm for the front. That leaves you with two options although I don't know which will work:
1. Run a 180mm front caliper with a 220ishmm rotor... Someone was saying that this 9ish in size was available.
2. Run a monster T post mount caliper with a hayes 160mm XC adapter... Kinda defeats one of the cool parts about hopes, but hey... it will let you run a 200mm rotor. That a Hope #12 caliper. Anyone know if this will work? It maybe the 9:74 caliper that we are looking for, which they don't make for M4s.
Hope may have a caliper #5, which they list on their website but I have never seen for an M4 or M6ti.
Looks like a swift move by Fox
I'm sure if this mount design fly's Hope will make a caliper to fit, as they have their Boxxer specific caliper. Hopefully a #3 is all thats needed.
I'm sure if this mount design fly's Hope will make a caliper to fit, as they have their Boxxer specific caliper. Hopefully a #3 is all thats needed.
Geez Brian, it sounds like more of a Hope issue than a Fox issue. This is not some weird standard like a Boxxer mount. You can take any caliper designed to work with a 160mm rotor, bolt it right to the fork, and use a 200mm rotor. Besides the Hope caliper, I can't think of a single other brake brand this would be an issue with.Brian HCM#1 said:Looks like a swift move by Fox
How is that? The basic IS mount has been around for over 5 years with most every caliper mount the same. Most of Marzocchi, RS, Fox, Avalanche, White Bros use it. So why not follow suit? I'm sure if this is the case they will end up making a #5 for the 40 since Hope is a big player in the UK market. Hope used to make them with there older calipers, but probably discovered they weren't necessary since there was a basic standard and after all its a DH caliper not an XC.Dogboy said:
It seems to me that this is a move in the right direction by Fox. I have thought it's silly to put 6" disc tabs on dh forks for years now, who would ever run a 6" front rotor in this application? It makes sense to have the caliper mount directly to the fork and leave out the extra adapters. Less parts, less chance for flex, deflection, less bolts to come loose.
The point with Hope is that they make different calipers that bolts right unto the tabs, no adapters needed.1soulrider said:
Yes and that's wonderful...until you change forks.Trond said:
I've never heard of anyone having those problems, you've never needed adaptors for the most part with Hopes on most forks.1soulrider said:
Brian, with just about every other brake you need an adapter to use 203mm rotors on a standard IS mount. The adapters can be pricey, they add a couple more bolts that might strip or come loose, and some say they flex and add weight. Not to mention one more random batch of parts for a shop to keep in stock.
As a shimano hydro user I think it's a great idea.
Hope seems to agree the adapters are a pain in the ass, that's why the go to the trouble of making lots of different calipers. But to me they are filling a need that shouldn't be there in the first place, and the Fox "standard" eliminates the need.
Anyway kind of ironic about the M4. So nobody ever wanted to run an M4 with a 6" rotor?
As a shimano hydro user I think it's a great idea.
Hope seems to agree the adapters are a pain in the ass, that's why the go to the trouble of making lots of different calipers. But to me they are filling a need that shouldn't be there in the first place, and the Fox "standard" eliminates the need.
Anyway kind of ironic about the M4. So nobody ever wanted to run an M4 with a 6" rotor?
face it, Hope mounts suck, period. If they were that great, this thread simply wouldn't exist.
KISS......use adaptors.
KISS......use adaptors.
We're putting together a DHR with a DH40 and Mono 4s, so we already asked Hope this question. They said basically you have to use the 180mm caliper and run a 220 rotor, it's the only option (unless you can find somebody to make a 240mm rotor and run the 200 caliper . . . gnar!).
Thanks James... My next question then: Maybe I should move on to the M6? Does M6 have an adapter that'll work?James | Go-Ride said:
That's an interesting question. I would think that since it's such a small part to make, Hope will machine an adaptor specifically for the DH40. If not, I don't know where you're going to find a 245mm rotor to fit the brake.
In all honesty, it seems like the 4-pot Hopes have more stopping power than the sixes, because they use the same lever (master cylinder) and the Mono 6 Ti has more fluid volume due to the higher number of pistons, even though the pistons are smaller than the M4 pots. I'd go Mono4 with the 220 rotor, it should be sick.
In all honesty, it seems like the 4-pot Hopes have more stopping power than the sixes, because they use the same lever (master cylinder) and the Mono 6 Ti has more fluid volume due to the higher number of pistons, even though the pistons are smaller than the M4 pots. I'd go Mono4 with the 220 rotor, it should be sick.
I couldn't find a 220mm rotor from Hope/Galfer/BrakingWave... you got a source for some of those?
Hope said they have rotors already, I think it's actually 218 or something like that (since the mount changes most other brakes from 165mm - 203mm). The set we ordered shipped from them already, I don't think distributors or anything have them in stock. In fact I'd be willing to wager that most distributors, with the exception of maybe BTI and QBP, won't be carrying the 218mm M4 rotor at all since it's such a niche product. How many people in the US will be running Fox forks with Hope M4 brakes, ya know?
do you know when the ElCaminos will be shipping?James | Go-Ride said:
Derail attempt alert!zedro said:
Really though, I love my M4's :heart: , but this is frustrating. Sounds like the 218mm rotors are the way to go.
That's exactly what I have sitting here for my Fox 36 (whenever I get the darn thingrobsetsfire said:
) Should provide pahlenty of stopping power!
are they out yet?James | Go-Ride said:
Last time we spoke to our Hayes rep, he said late Jan / early Feb.zedro said:
Does the 36 have the new "standard"? It's not mentioned on the website, but it is mentioned for the DH40.
Seems some people might want to run 6" rotors if they use it on an trail/urban/4x/slalom or dj bike...
Edit: OMFG, that 220 rotor is huge!
Seems some people might want to run 6" rotors if they use it on an trail/urban/4x/slalom or dj bike...
Edit: OMFG, that 220 rotor is huge!
Luc: Not yet, still waiting on the fork and frame to show up, but we tried to make sure everything was going to fit when those two semi-important components show up.
OG: I didn't think that the 36 had the same "DH standard" mounting system, but according to Sean below (assuming he did his homework
actually I shouldn't make fun since I don't seem to know the answer either) it is the same way. Really the Mono 4 and Mono Mini are the only brakes negatively effected by this out of the big brake manufacturers (excluding Magura, I guess), as long as Hope ends up making an adapter for the Mono 6 Ti.
OG: I didn't think that the 36 had the same "DH standard" mounting system, but according to Sean below (assuming he did his homework
actually I shouldn't make fun since I don't seem to know the answer either) it is the same way. Really the Mono 4 and Mono Mini are the only brakes negatively effected by this out of the big brake manufacturers (excluding Magura, I guess), as long as Hope ends up making an adapter for the Mono 6 Ti.
If you run a #8 caliper on your IS fork thats a 200mm,205mm rotor, no adaptor needed. To run the same size rotor in the rear, with the exception of the Foes Mono and maybe Yeti you'll need an adaptor to reposition the caliper. How does the Fox "standard" change this? IS has been around longer the the Fox "standard". To run Hayes, Avids you need an adaptor. So some Shimanos will bolt right up, but then again if you have an older Hope M4 #5 it will work fine.OGRipper said:
Part of the post-mount style brakes appeal is the fact that they use the adapter system instead of different calipers/half-calipers and shim stacks. I don't mind running an adapter if it means I'll never have to replace my caliper body ever again, other than as a result of an untimely demise. I'm not exactly sure what you guys are discussing/arguing about here.
LUC,Acadian said:
Just spoke to a friend at fox and he said they are starting to ship DH40's to OEM and International accounts, and in a month or so (bike time mind you) they will be in full swing to everyone else....
ah cool....great new for all of you waiting for one!oly said:
:eviltonguAcadian said:ah cool....great new for all of you waiting for one!
a No.3 caliper and a 220mm rotor is the only way to do it, as there is no more #5 caliper for Mono4s
i'm picturing those clueless downtrodden housewives in those info-mertials who throw their hands up in the air at the HUGE complication of having a chunk of aluminum and two extra bolts....James | Go-Ride said:
Zedro, who you calling a clueless housewife, punk?
Brian, your complaints are all about how it will affect you as a Hope user, and you're right, at the moment it doesn't make a lot of sense for Hope users.
I'm not a hope user (anymore) so I couldn't care less how it affects you. Don't you get it? It's all about me. :evil:
And anyway, it's not an Avalanche so you don't want one anyway, right?
My understanding is that Fox talked to some brake manufacturers who themselves were fed up with needing to offer a bunch of different calipers and/or adapters. To me it seems to simplify things for everyone - KISS indeed - calipers can be made for 6" rotors as a default (like they pretty much are now for everyone except Hope as far as I know), and if you want you can get a fox fork and run an 8" rotor without an adapter. You still need an adapter for larger rotors in the rear and for other forks without the new spec. So yooz can all have your adapters if you want 'em.
Yeah, you're out of luck if you are dumb enough to buy a fox DH fork and either want a 6" rotor or you didn't think to check out whether it's gonna work with the brake you own or want.
Is it not ok for me to like the idea?
Brian, your complaints are all about how it will affect you as a Hope user, and you're right, at the moment it doesn't make a lot of sense for Hope users.
I'm not a hope user (anymore) so I couldn't care less how it affects you. Don't you get it? It's all about me. :evil:
And anyway, it's not an Avalanche so you don't want one anyway, right?
My understanding is that Fox talked to some brake manufacturers who themselves were fed up with needing to offer a bunch of different calipers and/or adapters. To me it seems to simplify things for everyone - KISS indeed - calipers can be made for 6" rotors as a default (like they pretty much are now for everyone except Hope as far as I know), and if you want you can get a fox fork and run an 8" rotor without an adapter. You still need an adapter for larger rotors in the rear and for other forks without the new spec. So yooz can all have your adapters if you want 'em.
Yeah, you're out of luck if you are dumb enough to buy a fox DH fork and either want a 6" rotor
or you didn't think to check out whether it's gonna work with the brake you own or want. Is it not ok for me to like the idea?
Yo, I too just talked to my buddy at Fox and got the same response about OEM shipping now and the rest in a few weeks to a month. I might get a Sherman Firefly to tide me over. What do I need (Rotor/Adapter) to make my mono M4 #3 caliper fit a Sherman post-mount? Or is it even possible???
Don, Brian, James???
Don, Brian, James???
"Standard." Now there's another word to ban from RM.