Table of contents:
FRAME OVERVIEW
Balfa 2Step FR is a 5.4" (137 mm) travel frame dedicated for enduro, all mountain and freeride use.
It's meant for all day riding and going up before hammering down. Features the Balfa 2-Step linkage allowing for good pedalling efficiency as well as plush suspension. As all full suspension Balfas, it has beefy alloy front end and Cr-Mo rear end. Producer claims that this frame is tough enough for DH and light enough for XC duties.
GEOMETRY
Imperial dimensions (inches) | SIZE | ||
Regular | Large | ||
A | Seat Tube length | 15.9 | 17.4 |
B | Top Tube length | 22.2 | 23.4 |
C | Head Tube Angle | 69° | |
D | Seat Tube Angle | 65° | |
E | Chainstay Length | 16.9 | |
F | Wheelbase | 43.0 | 44.0 |
G | Bottom Bracket Height | 14.3 | |
H | Standover Height | 27.4 | 28.2 |
I | Head Tube Height | 4.6 | |
J | Fork length | 19.9 |
Metric dimensions (mm) | SIZE | ||
Regular | Large | ||
A | Seat Tube length | 405 | 443 |
B | Top Tube length | 564 | 595 |
C | Head Tube Angle | 69° | |
D | Seat Tube Angle | 65° | |
E | Chainstay Length | 429 | |
F | Wheelbase | 1093 | 1119 |
G | Bottom Bracket Height | 364 | |
H | Standover Height | 696 | 717 |
I | Head Tube Height | 118 | |
J | Fork length | 505 |
TECHNICAL DETAILS
- Rear wheel travel - 5.4" (137 mm)
- Rear shock size - 7.875 x 2.0" (200 x 50 mm)
- Seatpost diameter - 27.2 mm
- Seatpost collar diameter - 31.8 mm
- Headset - 1 1/8"
- Rear axle width: 135 mm
- BB shell width - 73 mm
- BB axle length - 113 to 116 mm (depending on chainline)
- Front derailleur - down swing, top-pull (with 31.8 mm collar)
- Tyre clearance - 26 x 2.5"
- Pivot bearings - 6001 RS (eight)
SUSPENSION DESIGN
2Step is suspension design with temporary (moving with compression) pivot point. It is very similar to Maestro, or DW Link. Such design's advantages are good pedalling efficiency (little to none pedal bob) and close to none suspension feedback under braking (brake-jack).
Animations by MMcG25
Suspension characteristics (red line shows type of suspension rate), axle path (dimensions in milimeters) and chain growth:
You can download 2Step FR layout for Linkage2 here (view BB7 suspension design for details and program download).
LOGO AND DECALS
If you need to print a new set of stickers for your Balfa, visit common "Logo and frame decals" section.
PHOTOS
LINKS
For more information about Balfa 2Step FR visit:
- FeedTheHabit - review
- ECMTB - review
- MTBR - user opinions
- MTBR - user opinions about 2001 2Step