It really depends on the type of trails in your area and the style of riding that you do.
I have a Magura brake on my Coker and I love it and use it lots. It is so nice to be able to put a little drag on the wheel when doing downhill on a Coker. It helps maintain control and it can save your legs if you’ve got lots of downhill to do. I don’t need the brake on my Coker, but it sure is nice to have.
I don’t have a brake on my muni and I hardly ever miss it. Well actually I do have a brake for it, but the brake is sitting in the parts closet. I prefer not to have it installed.
On a muni there are two situations where a brake is handy or necessary: downhill assist to save your legs and technical areas on the trail where a brake makes a section of trail possible. I have run in to very very few places where a brake was necessary for a section of trail due to the technical features of the trail. But that depends on where you ride. Around my area there are very few places where a brake is necessary to ride a section of trail. If I was riding the Vancouver North Shore regularly I would certainly install a brake. But I don’t ride those types of steep technical trails often (hardly at all) so I’ve rarely found a need for the brake.
At the California Muni Weekend two years ago we rode the Downieville trail. It’s a long downhill trail. The people with a brake were walking normally the next day. The people without a brake were generally sore and walking funny the next day. A brake would have been nice there, but it wasn’t necessary to be able to do the ride.
I went riding with Jagur in Falls City. There are two areas on the trail there where a brake is a very good thing. One place is a steep downhill with a two or three foot drop at the top. You can ride the downhill without a brake if you don’t take the drop. If you take the drop you need the brake because the momentum from the drop will get you going too fast on the downhill to be able to control. If you do the drop you have to apply the brake immediately when you land and then still pedal madly to keep up with the uni. But those situations don’t come up very often for me. Not often enough for me to bother with a brake.
A brake comes with it’s set of problems.
- A little bit of extra weight
- More maintenance to keep the brake working
- Needing to keep the wheel perfectly trued so it doesn’t rub the brake pads
- The risk of breaking the brake lever
The brake lever is somewhat exposed and if the uni falls just right it can break the brake lever off. You can adjust things so that the front of the seat hits the ground first and protects the brake lever. But that only works on smooth ground. Often you don’t drop the muni on the smooth parts of the trail If the trail is rocky or rooty or otherwise uneven it is possible for the brake lever to hit a rock or a root and break off. If you use the brake regularly then it’s worth the risk. If you rarely use the brake then I don’t find it worth the risk of breaking the brake lever.
You can actually ride quite steep stuff without a brake. You just have to take it slow. It’s when the steep downhill bits get technical that the brake becomes needed. And when it gets really really steep a brake is needed.
At the muni weekends some of the people with a brake are looking for places to ride that require a brake. Often those opportunities are off-trail. For example they’ll find a steep rock face and try to ride down. If that’s your game then you’re going to need a brake. The off-trail opportunities like that are usually more extreme than the on-trail opportunities.
So it really depends on where you ride. You can always add the brake later. No need to get it right off the bat. Try riding without the brake and see how it goes. If you’re riding stuff where you can’t maintain control on the downhill bits then get the brake.